I'm a CS and math major already, but I'm at a liberal arts college. I've learnt a lot forcing myself to write english literature papers, but I think I'd have fared better, academically, if I just went to MIT.
I quite liked english literature, actually. I just like hacking more... much more.
The thing is: I find liberal arts a very good idea, almost in the stereotypical way. I think by comparing perspectives, and doing lots of different disciplines seeds one's mind with lots of different ways of looking.
I didn't consider the English system (though I'm somewhat a product of it) since I didn't want to specialize. It turns out not specializing was more excruciatingly difficult than I thought it would be, so now I'm deciding whether to run in the opposite direction.