I applied through a recruiter. The process took 2 days. I interviewed at TXU Energy (Irving, TX) in April 2010.
TXU is quite laid back and fun company to work for. Marketing department drives TXU Technical department specially Web Technology group. The interview had 2 rounds. First round was very basic, over phone, simple OOPS concept. I recommend Illustrated C# by Apress to be your key to go through second round. The second round was group/panel interview more technical about Sitecore, Page Life Cycle, Web Controls, some design pattern questions, WCF.
TXU pays you upto market standards. They aren't very flexible about negotiation and will not go beyond their benchmark salary that they have established no matter what.
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