Can this psu support Radeon HD 6850?

i was wondering if my current psu can handle an upgrade such as the Radeon HD 6850

psu model#: FSP450-60EP
http://www.fsp-group.com/report/FSP450-60EP.pdf
sticker image from google:
http://userdisk.webry.biglobe.ne.jp/020/491/89/N000/000...

if not, what would be a recommended psu thats not too expensive?
current pc specs are
intel core 2 quad CPU Q9400 @ 2.66 ghz
8 gb ram
700gb hard drive