"Private equity is like dating -- they're not permanent relationships. With a VC you get married -- either you're with them for a long time, or there's a very painful divorce. With private-equity financing in stages, you finish a round and you can decide whether or not you want to stay with the investor, or you can stop dating for the next round."

--Rob Wood, president and cofounder of Dallas-based Coollogic Inc., a manufacturer of Linux-based Internet appliances