They've got some interesting bundles going on, but most contain one or more games that I already have and they don't look as slick or trustworthy as IGS. I'm too lazy to make formal suggestions, but IGS should nab some of these games.
Ones that caught my eye:
Quick Slick Deadly, by Adventurous Productions
Saviors, by Sharpened Edge Studios
Exodus Wars: Fractured Empire by Membraine Studios
Beyond Beyaan by Brent Patterson
Man in a Maze, by SmallGreenHill
Voyage to Farland, by Peculiar Games
Obludia by FobTi interactive
Dungeon Prospector by Mighty Fox Studio
All are on Desura and obviously open to bundles so I'm sure they'd be worth contacting.