On Ubuntu + my AMD card, sublime text just chugs no matter what settings I use or what driver I switch to, so I'm really open to checking out alternatives. I'm even working up the courage to dive into vim.
If you're going to be using something 10 hours a day for who knows how many years, definitely take the time to get to know the best tools, which to me are still Emacs and ... I'll grudgingly admit, Vim.