I just replaced my Saitek Cyborg V5 with a Qpad MK-50 with Cherry MX Red switches.
Actually I hadn't planned to get a mechanical board, but when the Saitek broke down I needed a replacement quickly, so I was limited by what the local computer stores carried. The MK-50 was one of the few quality, no-nonsense keyboards available.
So far I really like it. With the linear switches, it doesn't feel too different from a regular keyboard, just much smoother and more crisp than the mushy rubber domes. I have to get used to not mashing the keys all the way down - You can be really light on the keys with this board. I feel I already type faster, but still make a few more typos (double-tapping or accidentally hitting keys). The light feel makes it great for general use, such as alt+tabbing and entering other keyboard shortcuts, typing a few letters like the beginning of a URL, a filename etc. as well as for gaming. Maybe not ideal for writing walls of text, but certainly better than my old keyboard.