Hmm, I'll have to look at that. My all around favorite is Super Black RTV, with assorted others for special purposes. Seems like I always have to cut the tubes after a short while, I can never keep them from hardening before using them up... /forums/images/graemlins/frown.gif
As for seals, look for a tranny supply shop. Locally we have a place called "Transtar" where I just bought a *complete* gasket and seal kit for a 205, select seals for a 203 range box + adapter, AND a pan gasket + front seal for a Th350, all for around $30... Good, name brand stuff, not junk. Dealer will get nearly half that for some of the seals...