ooooh yeah, e-bay can be fun looking for those good deals.
i agree about having s/h listed up front. so far i've been satisfied with my purchases, got some good deals, saving money over ordering thru regular online shops or visiting the local hobby shop which charges retail.
however, my best deal to date was a trip, by happenstance, to a Hobby Lobby when they were having 1/2 off all models. picked up about 6 models, good ones, too. 3 accurate minitures, 2 tamiyas and a monogram pby-5.
i also got a steal on a mossie VI listing about $20-25 (plus shipping) for a total of $11, including shipping.