Video card question please help. Will PCI Express x16 slot work PCI Exp 2.0 card?

Hi. This sounds like a really wierd question because I don't know what is up with the terminology. So will this video card a href="http://shop4.frys.com/product/5724602?site=sr:SEARCH:MAIN_RSLT_PG" rel="nofollow"http://shop4.frys.com/product/5724602?si…/a work with this desktop a href="http://configure.us.dell.com/dellstore/config.aspx?oc=dddoma4&c=us&l=en&s=dhs&cs=19&kc=features~desktops_great_deals" rel="nofollow"http://configure.us.dell.com/dellstore/c…/a ? Does this desktop come with a PCI Express 2.0 slot and if not will that video card work with this PC?