I thought I'd just share my list of games that I have bought on impulse, and have not played yet, due to not having enough time.
1. Call of Duty Modern Warfare 2
2. Gears of War 2
3. Halo 3
4. Rainbow Six Vegas 2
5. Tiger Woods 2009
6. Batman Arkham Asylum
7. Prince of Persia
8. Brothers in Arms Hells Highway
9. Splinter Cell Double Agent
10. Tom Clancy's Ghost Recon: Advanced Warfighter 2 - Legacy Edition
Please add your lists.