I think the motherboard has 2 PCI express slots, so you can have 2 video cards. Nvidia 9800 GT or ATI Radeon 4870 are some good mid-range graphics card which you can consider. Read some reviews and find out.
I hope i helped..
I've recently come to realize that my single core Athlon 3500+ is rather out of date. I've decided to upgrade my Mobo, Processor, and Video Card. I hear the best bang for your buck these days is Intel Core 2 Quad Q6600 Kentsfield, and I'm seriously considering going with the GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Intel Motherboard. However, I've yet to come to any close decisions on a Video Card. I'm well aware that it only takes 1 pieces of outdated hardware to harm your computer's performance, and I don't want to make the mistake of purchasing a Video Card that is not on the same level as my processor. Honestly, I haven't been following the market for the past 5 years. I have no idea what would work with a Core 2 Quad. I'm not looking to go apeshit. I just want the best bang for my buck. Any suggestions?
PS: I'm currently using a 450w coolmaster Power Supply. Will I need to upgrade for the Core 2 Quad? How about the Video Card?