If you don't like the soldering aspect this guy will do it for you:
http://jkdevices.com/ATMEGA2560
If you do like the soldering aspect, you can get these boards on eBay and do it yourself. You can probably get the chip from Atmel for free if you can do a little song and dance on the samples request page.
http://www.ebay.com/itm/TQFP-100-TQFP100-0-5mm-pitch-Adapter-PCB-PIC24-PIC32-