Well now wait... If you've got a 2.4c, there's a good likelyhood that you can push some FSB's into the 280's and 290's. Why settle for running 5:4 or even 3:2 memory slowness, when you could run it 1:1?
Go back into the memory forums here, and about five or six posts down from this one is a "Komusa ADATA" memory thread with like four pages. We're talking about ram that will do 290+ (580 DDR) on 2.85v... With your AI7 and it's 3.2v VDIMM option, you could knock this stuff into the 300+ (600DDR+) arena!
And price? We're talking $69 for a 256mb stick, or $238 for a full gig (512 x 2 dual channel pack). That's exactly what I bought, see my signature...