Denver after 4 rounds:
PG: Ty Lawson
SG: Arron Afflalo, Ben Gordon
SF: Jason Richardson
PF: Al Horford
C: Nene, Nikola Pekovic
Moving Richardson to the 3 should help him as his speed wanes due to age. He's got enough size/strength not to get overmatched out there and the switch should help his defense. He and Afflalo can both play at SF when needed, so Lawson-Gordon-Afflalo is a reasonable backcourt, although not great defensively (Lawson is fast enough to keep his guy in front of him at all times, but small, while Afflalo is a strong defender on the wing but could have some trouble with bigger 3s).
I like my big man rotation. Lots of bulk and guys who can defend as well as score around the basket. Pekovic/Gordon will lead what should end up being a pretty strong bench. So we've got guys who can rebound and work in the paint along with guys who can shoot from long range and drive into the lane reasonably well. Fairly athletic, too, so an uptempo pace should suit them, barring Pekovic developing a Radja-esque two-pack-a-day smoking habit.