If you're looking for good 2nd half players, I'd target Jimmy Rollins and Aramis Ramirez.
Generally, my strategy is to avoid really streaky players. Guys like Adam Dunn will help you win HRs by 8 one week and then he won't hit for two weeks straight.
I had Miguel Cabrera last year who was solid as a rock, as well as Paul Konerko. For some reason, I didn't really like having Carlos Lee as his production was all over the board during the season.
I focus more on hitting in H2H as it seems like pitching can vary so much during the week. Last year I was lucky enough to get big power guys (Ortiz, Howard, Cabrera, Lee) who also hit for average, which helped in 4 cats H2H.
I can't give you a list of top 100, but those are the rules I try to follow...