Elder Scrolls Oblvion: Including all characters 500 hrs
Fallout 3: 2 characters totalling around 200 hrs
FFVII: around 300 hrs
FFVIII: around 200 hrs
Pro Evo is probably around 300-400 hrs for each iteration
Age of Empires II: Probably around 200-300 hrs. Completed each campaign twice and played tons of random maps and MP
Age of Mythology: same as above
Dragon Age Origins: 256hrs and counting :P Still have 2 more Origin stories to complete before I start Awakening
KoToR: Around 120hrs (3 play throughs)
GTA: San Andreas: Around 150 hrs. Played through twice (1 on PS2 and 1 on PC and messed around on this loads)
GT5 Prologue: Around 100 hrs
Edit: Forgot:
Neverwinter Nights: 3 playthroughs so around 150 hrs, plus 50 hrs for expansions. So, 200 in all.
Neverwinter Nights 2: 100 hrs, 120 including expansions.