Yeah, sorry I was just about to post that it's a 250w PSU. I guess it depends on how much you want to spend. Personally, I'd suggest:
XFX GeForce 8600 GT 512MB $69.99 ($59.99 after $10 MiR):
http://www.newegg.com/Product/Produc...82E16814150247
And a 400w PSU with a great rating ($36.99):
http://www.newegg.com/Product/Produc...82E16817104953
The Galaxy graphics card you're looking at only has one review. The XFX I'm linking has 223 reviews (73% of which are 5-star), plus comes with a double lifetime warranty. The PSU I'm linking has 166 reviews (80% of which are 5-star). All in all it'd be a big jump for about $100.