I was playing around with my logging program tonight and updated the "QRP DXCC Tally" on my operating page. The last entry I had put on there was the Isle of Man back in March of 2011. I have worked about 15 new DXCC entities since then via QRP - bringing my total up to 125 worked with 5 Watts or less.
I am sure you guys could do way better than that! I am just a dial twiddler and pretty much work DX when I come across it by chance, or during a DX contest.
If you're a dedicated DXer, who makes use of the PacketClusters and all that kind of thing, you could probably complete QRP DXCC and more in a calendar year.
But whether your an old fashioned dial turner like me; or use the latest and greatest technology to find DX, DXCC is very feasible using 5 Watts or less.
72 de Larry W2LJ
QRP - When you care to send the very least!