would this psu power it?

i recommend the ocz power supply for extra juice. but if u have more money getting this

http://www.newegg.com/Product/Produc...82E16817703005

or

http://www.newegg.com/Product/Produc...82E16817139004

oh,

I'm on a budget of 210$ for a new gfx card and psu,

so ocz it is.

tyvm

Corsair PSu's are very solid, one of the best IMHO... I would spend a bit more , but get the 550W Corsair unit

yes, i agree, get the VX550W version. Its rock solid and amazing Quality/Power.
The vx450w will perform better than the ocz in terms of solid power flowing through. compare how many amps are on the 12v rail on both PSU's. i know the 450 has 32A and the vx550w has 41A. chech the OCZ 12v rail power.

Get the 650 W if you can stand non-modular
(I'm waiting for mine to come in the mail)

Dont bother with the 9800GTX, just wait for the GTS 250 512mb to drop... since it will only be $130 soon, or you could just buy the 9800gtx anyway, maybe it will be even cheaper than the 250

450VX should be fine for that setup.