I'm looking for the best gaming video card for my PC. As it has a small case, I can only use low profiles cards. Can you guys suggest some good cards and also other stuff I could possibly do to make my system better?
With a $600 budget you're much better off getting a new case, PSU, and a full-size dual-slot GPU like Munchbot said. Depending on what you're playing for games, you could even fit in a processor upgrade if your motherboard allows higher TDP chips.