Opteron 165.. A8N32-SLI Deluxe/crysis recommendation

[COLOR=Indigo]i have the forementioned and ocz gold pc3200 and ocz 550 watt psu i thought that id get an 8800 320mb to run crysis but read that the 939 socket would hinder the cards performance...i have never oc"d ..the asus A8N32 has never run sli only afford one card ..o well soz should i upgrade to opty 185 with 2.6 stock speed or should i make an effort to overclock the 1.8 stock (165 opty into making crysis perform well what i have.. all is out of warranty now ...would appreciate some help guys im desperate to be kicking by friday CRYSIS release date with a little help from newegg ok thanks for any help or referrals to links with help...im mostly concerned about on line play so minimum requirements prolly wont get it ..am willing to get ocz 700 watts and some new ram(ocz platinum) to go along with 8800 320mb i have a huge thermaltake tower so heat hasnt seemed to be a prob
ok thanks for your time and any assists PEACE clownshoes