And Gigabyte that has D in front is all solid caps. I've bought a P5KC, but now, I'm broke as a piece of glass. I'd recommend you, if you want to save a bit more, the Gigabyte P35C-DS3R. The P5KC is the same, but that, you buy at whichever you find the most promising.
Personally, the ASUS sure looks good, but the big drawback is the IDE channel, being at the other end of the board. Inconvenient for CD drives.