[citation][nom]senshu[/nom]AMD is definitely great at making a socket last as long as possible,~ AMD's milked pretty much everything they can out of the AM2/2+/3/3+ socket, it's been several years and it looks like you'll be coming in just as the AM3 party is winding down.[/citation]
The new chips are Socket AM3 compatible. There are currently NO AM3+ boards on the market. Expect those with USB 3.0 & SATA 3.0 native with the new CPUs and chipsets.
AM3 has a good 2 years left, AM3+ will come out or AM4 to support DDR4 with the new CPUs.
To the guy with Pentium D: Ugh... when ya upgrade, even to something like todays $50 AMD CPUs are much faster than such chips.
Its all cheap nowadays. My 1990 computer was MRSP: $3000 (25mhz / 4MB of RAM / 50MB HD - no CD-ROM, no modem, no Network card) - it was top end for its day.