Crazy question.
I have a Gateway LX6810 - 01
It has all the specs to run this (quad core processor, 8gb ram, more than enough hard drive space) but my question is if my video card is good enough to play this game.
I have an Nvidia GT 120 that does not show up on the list at all.
nVIDIA has continued to add to the complexity and power demands of their primary High End GPUs ever since they started making graphics chips, until they started really having trouble splitting out new Mainline and Low End cards from the newest generation. They have kept the old Geforce 8400 GS in production for over four years now, at least partly for that reason. The Geforce 8600 GT had been that generation's Mainline card, but it cost them too much compared to the cost of the Radeon HD 3650, so their price wasn't competitive. They also had cooling fan problems on all of the 8n00s, including the original 8400 GS. In order to avoid losing sales in the Gaming category, they developed a "between" card, the 8500 GT, to sell for less than the HD 3650, and not to be as bad as the 8400 GS.
The GT200 generation's lesser cards were very late, with an even more complicated GTX280 on top, so for an interim answer, they corrected the fan problems, and redesigned most of the 8n00s to use the newer, thinner 40 nm dies, giving them new 9n00 names. The 8600 GT became the 9500 GT, the 8500 GT became the 9400 GT, and various other renamed ones filled out the range from 9300 GS to 9800 GTX-plus. Some GT 200 lesser cards finally appeared, including a Low-Middle GT 240 with slower VRAM, and a better one with fast VRAM. The 9400 GT didn't sell well, and the GT 220 was held up at first, starting out too expensively.
The 8n00s were tapped once again for re-use, with the GT 120 having been the 9500 GT, the GT 130 having been the 9600 GSO, and I've forgotten the heredity of the GT 140. The GT 210 was released, for the Ultra Low End, with less performance than the poor 8400 GS, and the GT 220 finally was ready, replacing the 9500 GT and the GT 120 in the borderline area between Low End and Mainline. The GTX400 generation was very late coming, so various "300" renamings of GT200s had to be released, such as a 310, 320, etc.