Need help picking new TV/Monitor

Hi, next week i'm going to be getting a brand new TV, but i'm confused about what i really want. I want a large TV that i can also use as a monitor for my gaming PC and xbox 360.

I been searching for over a month, And i'm stuck, 32" TV is huge, too big for a monitor, and 27" fits the size perfectly, however there isn't a TV that is 27" and has the resolution of 2560x1440, i seen 3 monitors under the price of £450 (max i can afford) that are 27" and have 2560-by-1440 resolution but they aren't TV's, i need help deciding, any monitors you can suggest?