So I'm getting ready to build my home office and I'd love to have a Thunderbolt Display and all Mac periph's but the current 27" seems to big for my space. I'd like something smaller in the lower 20's would be nice. Obviously this is pure speculation but what do you think the chances are that apple has multiple sizes with their next update to the TBD? I'm trying to hold out but I might just get something smaller and cheaper. Any thoughts?? Thanks!