Sony is now offering $40 off when you buy the 505, an accessory, and a warranty. I got the Silver 505, the lightwedge cover, and a 2-year warranty (including accidental physical damage) for $384.97. Then, if you apply for a Sony Visa, they'll take $150 (now it's $100) off your first purchase of $299 or more. Thus, I will have ended up paying $234.97 for everything.
Edit: the only downside is that I had to pay sales tax of $26.95.