This website allows you to build your own bot for penny action websites. They list the auction sites they are compatible with, which is most of them. For $49 you will receive a license key, software, and updates for 1 year to their software.
I guess you would consider it sort of a "bid butler" on steroids. It gives you access to statistics that you don;t normally have access too, like historical user bidding stats to help you weed out shills. Hum... And they say penny auction sites are legit.
I did look through their Forum. They only have 106 Registered users (figure many of them are admin and auction site related). Not much info to be gleaned there. I get the impression this software and site relatively new.
Anyway, I haven't used it so I can't recommend it; however, it looks like a good investment if, and only IF, you are going to play penny auctions.