Well, I'm assuming you want an HT setup since the 3805 is a 7.1 amp...
Personally, and it may be a little biased, but I think if you look into brands like B&W, Paradigm, or even Dynaudio, you will be pleased with what they have to offer. A couple of setups I had in mind:

Dynaudio Audience 72 towers - $1600
Dynaudio Audience 42 C center - $400
Dynaudio Audience 42 rears - $700

The 72's have a separate bass woofer, and I have not personally heard them, but you may or may not need a sub. Entirely up to you. That totals $2700. If you want a sub, you will be looking to pay around $400-500, for a nice somewhat basic one, like by velodyne or HSU. Then there's:

B&W DM603s3 - ~$1000
B&W LCR600s3 - ~$400
B&W DM601s3 - ~$350

You could always move up to the CM model line and get a nice subwoofer from velodyne or B&W with either. Good luck.