Rega Planet
As an owner of a Rega Planet, I can tell you that I have been very pleased. I haved owned it for several years & still think it compares favorably w/ others I have heard. You can find them used on several sites including Audiogon & eBay w/in your budget. Good luck & good Listening.
Summit Break In
Although I don't know about the break in time, I thought you might be interested to know that The Absolute Sound has an awesome review of the Summits in this month's issue(3/06). Check it out. You'll be most proud of your new addition.
Used Odysseys
5k doesn't seem like a great price to me. I saw a pair of demos here in Mt Pleasant, SC last weekend advertised under 3k and sure enough when I went to see them the price was real and in GREAT condition. They were @ Tweeters. 843-388-8509.