If you're not yet ready to make the the jump to DDR3 memory but are itching to upgrade nonetheless, MSI has you covered, and it doesn't matter if you're an AMD or Intel fan. The motherboard maker has released a pair of hybrid motherboards, one for each camp, supporting both DDR2 and DDR3 RAM.
On the AMD side, MSI's AM3-based 790GX-8D supports both DDR2-1066 and DDR3-1333 memory when paired with an AM3 processor, and also works with AM2+ CPUs with DDR2 memory. Four slots of each are crammed onto the PCB, however you can't use both memory technologies at the same time. Moving away from the memory, the board also comes with two PCI-E x16 slots, two PCI-E x1 slots, and a single standard PCI slot. Using the onboard graphics, gamers can also set up a CrossFireX hybrid configuration.
Switching gears to Intel, MSI's P45-8D sports four each DDR2 and DDR3 slots as well, though it remains a generation behind as an LGA775 board with support for Intel's Core 2 processors. On the expansion front, the P45-8D comes outfitted with a one PCI-E x16 slot, one PCI-E x1 slots, and three standard PCI slots.
The P45-8D is available now for around $170 street. No word yet on price or availability for the 790GX-8D.