I think another member recently went to Electronicsexpo.com and used the coupon code DEALZON and got the P363s for ~ $331/pr + $30 each shipping = $391 total shipped (for 2 speakers); but he said you might have to call their sales people since there is something wrong with the shipping online calculation.
I think you will be very pleased with the Infinity P363. I own a pair of the P362s, and I think they sound very, very clear, smooth, with clean bass down to 38Hz.