The MSI X58 Eclipse motherboard is the next up for Intel's Core i7 (Nehalem) processors. As with all LGA1366 X58 motherboards, it fully supports up to 24GB of triple channel, DDR3 RAM. The motherboard also boasts APS (Active Phase Switching), Drive Booster, and D-LED 2 (which displays debug messages during boot and system status messages during operation).
If you're looking for a P45 motherboard, the MSI P45 Diamond is an excellent choice. The Intel chipset (Eagle Lake) based motherboard is laced with incredible features, and is compatible with mostLGA775 processors, like the Intel Core 2 Quad, Core 2 Extreme, Core 2 Duo, Pentium Celeron Dual Core, and Celeron.