I just took advantage of CC's one year trade-in policy and swapped my cs245i for a 400i. I know everyone said how great it was, but I couldn't believe how much better it really was than the 245i. With my onkyo 696 receiver, 600i mains, 35i rears, and dcm sub, my system is pretty complete.....for now. Next step might be a flat screen or maybe a better sub. right now, I'm content.
P.S. I grabbed the 400i for 300 bucks....only 120 dollar difference over the 245i. Soooo worth it.