thats it lotus! I think you will be happy with your choice. a 29 is a god tank cuz its not so big it runs your wallet empty, but not so small you lose interest or get angry cuz you cant keep certain corals. I think your downside is that the 29 is a taller tank, so u might end up having to get brighter lights, but its not too bad. Ive seen some awesome 29's, and i cant wait to see yours
__________________
40 Gallon Reef: 80lbs LR, 250w MH, 15+ gal Sump, AquaC Remora, Koriala #2,#3
29 Gallon: My yellow angel (Sonny), 6 neons,7 other tetras and my CAE...ugh. hes huge