T-Mobile for Fuze

[MichaelN]

I'm with T-Mobile and want to stick with them, but also want the Fuze. Does anyone know for sure if I buy a Fuze from AT&T and get it unlocked from a local wireless dealer that it will work on T-Mobile? Are there any disadvantages to buying a locked device then getting them unlocked? Any tips for getting a device unlocked? I'm in California.