I have two upgraded cubes. One has a PL 1.7GHz CPU, and another has a PL dual 1.5GHz CPU. So, each has the included cooling fan installed. Each has stock DVD drive, 1.5 GB RAM, and WD 7200 RPM HDD (one is 80 GB and one is 160 GB). Both have the stock ATI Rage 128 graphics card. I have an Acrylic 23 inch HD cinema display, but the ATI card will not drive that monitor. I also have several 17 inch studio displays, and have noticed the dual processor cube handles video much better than the single CPU cube. I do not play games, nor do I intend to on the Cubes, but I do like viewing videos on You Tube on occasion. My question is, among the "drop in", "no mod necessary" video cards for the cube, which would give me the best performance increase while also allowing me to use the 23 inch HD display? Seems like the following will fit in a Cube with no modifications AND will drive a 23" HD cinema display: GeForce 2 MX, GeForce 2MX twinview, GeForce 3. Best I can tell these would all be "drop in" cards with no modifications necessary other than swapping the face plate if need be. Seems like the 2MX has heat issues, but is that less of a worry since I already have a cooling fan installed? Is the cooling fan on the GeForce 3 too loud? Is there much performance difference between the 2MX and the GeForce 3 and/or the stock ATI 128? I'm willing to spend more money for a better card if there is a real performance increase. Any and all help would be appreciated.