1. Here you go. About the Emotiva XPA-5 for only $799 ($719 on sale), and with the money left over, just buy a bunch of good CD recordings and Blu-Ray discs.
2. Or, get two Emotiva XPA-2 and one XPA-1, for a grand total (on sale) of only $2,337

And later on, when you want to go the full 7.1-channel shawbang, just get an UPA-2, for only $299 ($269 on sale) to power the two rear surrounds.

Grand total for 7 channel amplifiers = $2,606
3. Another option is to go with the Emotiva XPA-2 to power your two front mains, and an Emotiva XPA-5 to power the other five channels.
Grand total (at sale price) is now $1,438

Again you get the full 7 channel amplifiers.
*** And they all look good too, plus all the power you need, even into 4 ohms.
Note: Don't worry about 9 or 11 channels, they will never make recordings using that many channels. You'll be just fine with 7 channels for a very long time.