Well, I generally only run at 24/48 when I'm recording WAV, so 4 gigs should be more than adequate for my general taping needs.
By all accounts, this sounds excellent. As soon as I can juggle around some money, I'll throw the Korg into the YS, buy a stock FR-2LE, mess around with that for a little while, and then send it in for the T-mod. I'm psyched.
Yes, I'm a gear whore. I just never get to have all the gear at once