I haven't seen any threads on this exact comparison. The new Core 2 Duo MBP is $1900 at the cheapest (at least that I've seen). It would have 1GB, 120GB HD, and a 128MB video card. A refurb Core Duo MBP is $1499+tax (~$1589 in my state). It would have 1GB, 100GB HD, and a 256MB video card. Without factoring cost (obviously $300 is a lot), which would feel faster? Would the difference even be noticeable?