aw come on, don't tell him the FX was a bad choice!
its very discouraging when people say that. my second rig is still proudly pumping the 8350! I really enjoy that CPU.
the CXM will treat you just fine... going with higher end PSUs will give you more power efficiency for the electric bill, nicer cables and quieter operation... and of course more stable power!
Figure out what you want for cables (modular, non modular, semi modular) and if you care about efficiency and silence.
the 450 watt mentioned above should do it with your components... but in the future if you buy something crazy power hungry and you don't want to buy again... I would get something a little more powerful and nicer... there is an old saying that goes ( you only want to cry once) haha