I've had to start supplementing my little fella with formula and have found The NUK bottles are FANTASTIC!

Im pretty sure they cost around $18 for three but they are designed to feel just like the nipple (the teat is quite wide) and have special air flow teats that helps to prevent colic.

Zane is a bit of a gulper and I find with the NUK bottles he has to take his time, so obviously hes not taking in huge amounts of air. I cant say enough about how great these bottles are