Should have told me you were in Canada, I know all the deals here!
The 45B's are on sale right now, free shipping and only 168.00 !
Another speaker in you can get in canada, the M10, goes on sale quite often for 68.00 and would be great surrounds. http://www.visions.ca/Catalogue/Cate...d=2382&sku=M10
I can't believe speakers I bought for 68.00 shipped to my door sound as good as they do. I really like them, I ran 120W to them for about 5 hours straight one night and it broke the dustcaps off both of them but they still work fine haha.
Putting a bit more money to front speakers and a bit less to your surrounds will give you better overall sound than spending the same on all four.
I strongly suggest to not downgrade from the Bic F12, it's basically the lowest-end sub you can buy that is actually a subwoofer. Cheaper subs are than it are pretty much a joke. The sub you linked is alright, it's probably quite similar to the F12. I'd offer 100 or 125 for it probably. The PSW505 is similar and it's 200 brand new (on sale, but it's on sale like 6 times a year).
If you can get the E300 from the US that's good, I don't think you can find it for cheaper in Canada. If you search hard, you might be able to find a dealer here that will sell for like $250.00 for a clearance sale this summer.
I found the center in canada http://www.visions.ca/Catalogue/Cate...sku=MONITOR15C
It's expensive MSRP, it should go on sale for like 129.00 shipped or even lower eventually.