I haven't actually used a System76 laptop, but they look really good:
https://www.system76.com/laptops/
Their 15.6" Pangolin comes with all your criteria plus more (and even more if you want) except for maybe the heat issue, which I'm unsure about. It's around $1000.
I think it's the way to go. If I had $1,500 to spend, I would probably go straight for their computers.
This is what you would get for (15.6" Pangolin) $974:
Ubuntu 12.04 LTS 64 bit
5 Free GB of Ubuntu One Online Storage and Sync
15.6" 1080p Full High Definition LED Backlit Display with Glossy Surface ( 1920 x 1080 )
Intel HD Graphics 4000
3rd Generation Intel Core i7-3610QM Processor ( 2.30GHz 6MB L3 Cache - 4 Cores plus Hyperthreading )
4 GB DDR3 SDRAM at 1600MHz - 1 X 4 GB
500 GB 7200rpm SATA Hybrid Hard Drive with 4 GB SSD +$75.00
8X DVD±R/RW/4X +DL Super-Multi Drive
Intel Centrino 1030 - 802.11 b/g/n Wireless LAN + Bluetooth Combo Module
No Bag
1 Yr. Ltd. Warranty and 1 Yr. Technical Support
I'm sure that'll suite your needs.
:)