I'd do the same patio, if I could afford to.
DDR3 doesn't seem worth it to me at all right now, the negligible performance benefit not justifying the price premium.
The platform however, with an i7 and support for more RAM on a mainstream/enthusiast board than most mainstream/enthusiast DDR2 boards, does appeal to me.
It's not my kind of thing though, and I won't be investing in i7.