I am picking up my 700P today at a local store (the manager held the first one to arrive for me.) Seeing all of the issues around Vision vs. Powervision, price of phone, rebates, etc., I would like some advice about negotiating the best purchase/plan adjustment possible.

It sounds like retentions is really the place to go, but I assume I can get this manager to work some sort of deal.

I have three lines and have had Sprint starting with the release of the 600.

Suggestions on what to ask for that is reasonable (this guy has been a big help and I don't want to truly beat him up over this)?