I saw these in the local Target today. There were loose packs and 8-pack blasters available. I bought two blasters.
The base set has 200 cards featuring Topps designs from 4 different years, 1954, 1971, 1980 and 1984. I pulled about 27 cards from each year between the two boxes with only a few duplicates. So I've got about half the base cards and a pretty good selection. The base set features mainly modern players, with about 20% of the cards featuring former players. Here's a card from each year.
2012 Topps Archives #50 Albert Pujols
2012 Topps Archives #77 Chipper Jones
2012 Topps Archives #108 Cliff Lee
2012 Topps Archives #187 Nolan Ryan
2012 Topps Archives All-Time Fan Favorites #221 Jim Abbott
2012 Topps Archives Rookie Reprints Cal Ripken
I'll post the other inserts in a few days.