could this PSU run my rig or am i rterded

i own a HP a1600n, pny nvidia 7900 gs,2 gig ram, this site for the computer...http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00757531%26lc=en%26cc=us%26dlc=en%26product=3245022%26lang=enand this da PSU that i wana see if itll fit and itll workhttp://www.newegg.com/Product/Product.aspx?Item=N82E16817189014