Fred Pohl is one of my favorite authors.
Most of the Gateway/Heechee novels are great.
Be sure to check out his works with Cyril Kornbluth, especially the Space Merchants, esp. if you like social satire/commentary. However, Wolfbane (I think) and Gladiator at Law were somewhat disappointing. I agree, Man Plus wasn't as memorable as some of his other work, but it was still worth a read.
Check out the short story collection Platinum Pohl as well, esp. Spending a Day at the Lottery Fair.
I have nothing to say.
360 Gamertag: dtcarson