PSU died so looking for replacement

[suzyb]

My 500w OCZ modxstream psu died today and as I need the PC for work I need to source a replacement asap. I intend to upgrade the PC soon but need a PSU to tide me over until I get round to that.

PC specs are
AMD Athlon II quad core 640 3Ghz
2 sticks Patriot Viper 4Gb RAM
2 sticks cruical 2GB RAM
ATI Radeon HD 7850 gfx card
Spinpoint F3 1TB HDD
Cruical MX100 SSD
Samsung DVDRW

Can anyone recommend a cheap PSU to get me up and running again. Or would I be better off spending some proper money and getting a PSU that could be used in a future upgrade.

 

[suzyb]

Not really. Which is why I'm not just upgrading now since my current PC is dead, I'd like to do some research first.

 

[suzyb]

Thanks guys. I think I'll just get a new PSU for now to get me up and running but I'll no doubt be back for upgrade advice