Originally Posted by simcoe26
I was curious about how big a beer you can do in a ice chest. Does it limit you at all
It all depends on how big of a cooler you get. See here
Lots of people are using lots of different types of coolers (all shapes and sizes) for mashing, with great success.
Personally I'd go with a cooler MLT and use your kegs for HLT and BK for now, but we all know that you'll be keeping an eye out for that third keg soon.