Hmmmmm thanks guys, especially Qwarkdreams .
I'd have blindly bought without points like that being raised lol.
I don't really have a budget as such I'd just like as much as I can get for as little as possible really. (wouldn't we all lol)
My everyday use would just consist of music storage and streaming Netflix etc , gaming is an afterthought but wouldn't want it to be crippled should I decide to play on it though.
Well, what are you willing to spend on a desktop PC? It will be difficult to find something for under 300P that will work fluidly for more than 2 years, at least new ones (not a fan of refurbished electronics, so I won't recommend them).
With APUs (CPUs with integrated GPU) you don't need a dedicated GPU (which will save you about 100€; sorry, don't know the prices in UK) and it will be enough for watching videos on a TV.
A Pentium G would be fine too, but even with one of them inside the PC you'll be facing prices of 300P (+/-20).
Be careful with new PCs that are suspiciously cheap, many of them come without OS or even optical drives (so no Windows on it, which will cost you about 70P and about 15-20P for an optical drive).
Even a Laptop with similar specs will set you back ~300P.
Edit:
I realize that assembling your own PC is not for everyone (be it the lack of know-how (not an offence!), a small budget or simply the unwillingness to do it). I can only repeat myself: getting a desktop PC for so "little" money (it's still a lot) is nearly impossible if you want to use it for years without having to upgrade at least some parts. And if you don't want to tinker around with the innards of your PC you need to get a completely new one.
If you should change your mind there are lots of guides (and they are nothing more, just guides) in article and video form all over the internet to get the work done. They explain step by step what you'll need and how to put the parts together. A little reading is necessary so you don't end up buying the wrong parts (like a CPU that won't fit onto your motherboard or DDR2 RAM that won't fit in any of the current motherboards) or having to buy more than you expected to (like cable splitters because the power supply unit or motherboard don't have enough connectors for addictional case fans). But overall it is really as simple as putting a set of Lego together (you can't connect a cable with a part that doesn't fit because, well, it just won't fit, even with force). And it's also kinda fun :-D
I started a thread about desktop PC assembling myself here in this forum but it's not finished yet but the point is: the thread I'm talking about started out as a help thread where I seeked help myself (old PC of 6 years was about to die and I had to get a new one and decided to assemble it myself with nearly no knowledge about the subject matter). Looking back I can say it wasn't easy getting to know the difference between all the parts and how they work together best but it was definitively worth it. And best of all: it works ;-)