The developers of the xtrROMs and the Tenzo ROMs have together developed a completely vanilla 2.1 based ROM. It was released today in beta, but this one looks very interesting to me. If anybody flashes it, I'd love to hear what you think.
[ROM-beta][9-3-10] Vanilla 2.0 [Pure AOSP 2.1, OC, A2SD, BFS] FAST/STABLE - xda-developers
[ROM-beta][9-3-10] Vanilla 2.0 [Pure AOSP 2.1, OC, A2SD, BFS] FAST/STABLE - xda-developers