Lookin for a new graphics card, any ideas.?

hi, i recently had to downgrade to a Nvidia geforce 8500 GT 256mb as my other card, the HIS HD 2900 XT 512 MB is knackered, so i am needing some goood advice for a new one, my budget is �0 - �150 and im not fussed if its radeon or nvidia as long as its more powerfull then a 2900 xt. ive been using overclockers.co.uk, novatech.co.uk and dabs.co.uk in the past. my motherboard is a gigabyte MA780G-UD3H. i hope to play crysis and other games on max settings, my processor which i definently wont be upgrading is a AMD 7750 black edition as i have just bought it to replace a AMD 6000+.