My Mac Mini i7 (non-server) is due in a few days and I'll be upgrading the RAM to 16GB and replacing the stock HD with a 240GB SSD. I'm looking forward to the online recovery for Lion. I also have a 3TB 7200 Drive that I will probably be dropping in as the 2nd drive to house my iTunes (Music and Movies).
I'm getting an OCZ Agility 3 2.5" 240GB SATA III MLC SSD and I'm hoping it screams. What I'm really waiting on is more 3rd Party Thunderbolt Cases and Cabinets. Then I can completely dump the other HTPC.