Thanks guys!
Oddly I don't seem to have as much problem working a new Tamiya or Hasegawa kit so I'd like to go with the complex, esoteric, and downright bizarre stuff I've managed to collect that I can't seem to get motivated to start ;). I've tried to avoid stuff other people have already listed and broke the 15 down into three categories.
AIRCRAFT (ALL 1/48)
1). CF-18 Tiger Meet Hornet - Hasegawa kit with Flightdecs Canada decals.
2). P-47D Thunderbolt (Ok, not really a complex kit but I hate natural metal. I have been reading the tips on the NM group build so I think I'm up to this - I hope!)
3). Mitsubishi G4M 'Betty' (Tamiya)
4). F-15J Shiro Ruyu 'White Dragon' airshow fighter (Hasegawa kit with Two Bobs decals)
5). Flying Flapjack (never build a Sword kit but as short run should be a challenge)
ARMOUR (ALL 1/35)
6). IJA Type 3 Chi-Nu (FineMolds)
7). Soviet/Russian Federation T-80UD (Zvesda/Revell)
8). British Comet (Bronco)
9). Aussie Centurion (AFV Club)
10). U.S. M4A3E8 Sherman (Dragon)
SF/FANTASY AND GENERAL WEIRD STUFF
11). StarFleet Miranda class CL NCC-1864 U.S.S. Reliant (AMT/Ertl kit with fiber optic goodies added)
12). Dalek (Comet Miniatures - EXTERMINATE!!!!!)
13). Dragon (Dark Sword Miniatures - from a Larry Elmore painting but I'm not sure which one. Scaled to 28mm gaming figures - about a foot/30cm in size.)
14). Firefly class light transport Serenity (Stargazer models)
15). Gyaos (Tsukuda Hobby- big vampire bat, pterosaur, Tokyo-destroying, turtle-hating vile beastie.)
That's all folks!