Optiplex 755 video card...

​Hello...​

​I have a Optiplex 755 desktop and I want to connect 2 monitors to it. So I want to buy a video-card that has 1 VGA and 1 DVI and that is compatibile with this machine(phisically, to be small enough to fit inside).​

​Can someone (who has done this before :) ) help me, please?​

​Thanks...​

​Later edit:​

​After some searches, I've found this site: ​​http://www.4allmemory.com/index.cfm?fuseaction=search.memorySearch4&model_id=67152​

​Can anyone confirm that Asus Nvidia GF8400GS is compatible with Optiplex 755?​