I envy your motherboard if it can hold another SATA, my P5QEM-Do currently (ATI 5870 + 2 Maxtor 320Gb RAID 0) has no extra room at all - not even for a slim SSD! Need to upgrade it one day after Christmas, not sure I'm willing to reassemble all that.
As for getting slizzy, good luck but not too much cuz this is what spoils Christmas. Plus what if suddenly you need to debug a crash dump and you're a bit that? Yea, kidding ... ; ) We're gonna dress Xmas tree in the backyard this year, put some lights on.
Happy Holidays to All. : )