The 2.8 24"ers are not in stores, they may be at sometime but not yet. Anyway if you really want one, I suggest ordering the $1,799 24"er with the 2.4, changing the CPU to 2.8 and the HDD and mouse to whatever you want. That way it will come with 1GB (1 stick) of RAM. You save $150 + tax off the 2nd stick. Get a 2GB stick for 3 total for $115 or get 2x2GB for $230. That's less than $80 more than the 2GB model from Apple for 4GB total. I ordered it that way with the 750GB drive. I wanted more internal storage and didn't want to open it up to change out the drives since it's not user accessible.