Thanks everyone!
Well it depends on what carrier your on. If you can pick any carrier, you will have plenty of options.
I'll most likely be using AT&T. My contract is up with them, and I am hesitant to re-up for 2 years (so I'll be buying any phone off of contract), but they seem to be the best in my area followed closely by Verizon. T-Mobile and Sprint are extremely spotty here, so those two aren't an option.
You may want to check out the Dell Venue Pro if you love keyboards.
I had seen that one, but had thought I couldn't get it on AT&T. Just did a search though, and found I could buy one with the AT&T bands directly from Dell, and the price isn't bad. I will certainly be looking into that one. Do you know of any stores that carry them, so I could get a hands on feel?
As far as other Window Phones, the new Focus S looks great. If you crave a large screen then the HTC Titan will be the way to go. You also may want to look into buying a phone off ebay or craigslist right now because new Nokia phones will be available in early 2012.
The Titan's screen might be a bit too large for me.

I still am going to check it out when it is released though.
The learning curve will be very easy. It is not a complicated OS like Android, but a little more complicated than iOS. There are plenty of YouTube videos out there to learn about how to use mango. If you use a lot of microsoft products like xbox, word, skydrive, etc, then you will really like a windows phone. That is one of microsofts main goals is to unify all of their products when windows 8 comes out.
This is what's been pulling me to WP. I mostly use my phone for email, document editing (word and excel) and then of course web browsing when I am away from my regular computer. I had been reading about the upcoming Windows 8 (late next year?) and the idea of having one unified ecosystem would be great. After reading about it, I was sure I'd be coming to WP when 8 was released, but why not try it out now?
The only disadvantage is just the lack of phones right now for certain carriers aka verizon and sprint. ATT has new phones confirmed that look great. Only other negative I can think of is the apps are not there yet and the games are kinda pricey compared to Android and the iPhone.
I'll check out the app marketplace, but I don't think this is going to be an issue for me. I come from BB which has a notoriously sparse app world, and I haven't had an issue getting apps that I want. I don't download a lot of games.
Yes! Thank you.
Do it and don't look back.
This is coming from a former blackberry user. The only thing I missed was BBM, and there are apps now that replicate that (Kik, whatsapp, etc)
Honestly, BBM is great, but I didn't use it too much. Most of the people I message are on iphone or android, so I used BBM almost exclusively for messaging with my wife.
For anybody switching to a new OS, think about the features you need in a phone, see if WP has it, and make your decision there. Because a lot of times, people switch and get upset because certain features aren't present
I think I'm good there. I mostly do document editing, emailing, and web browsing. I also use the kindle app, which is available, and manage my calendar.
I am also a ZuneHD user, and like the idea of combining my music and audiobooks onto one device.
I was a longtime Blackberry user. I had the Bold 9000 on AT&T and I loved it. After my 2 year contact was up, I switched to Sprint for the Blackberry Style 9670.
I really loved their physical keyboards and thought I could never switch, but I was drawn to WP. I got the HTC Arrive on Sprint, and the keyboard took some getting used to, but I really like it now.
I thought I would really miss BBM, but it's really not that big of a deal. I miss the password feature, but I bought Sky Wallet and it's not bad. I really liked the memo pad on BB, but I'm using One Note on Office, it seems to do the trick. I really like the Sky Drive integration, even though i never used it prior to my WP7.
I thought I could never leave BB, but iOS and Android just did not appeal to me, but once I tried that WP7 I couldn't shake the feeling that I needed it.
Memopad is one that I will miss. Is One Note a good replacement?