Small midi tower case

[masten]

I keep going back between atx and micro atx.

(atx: evga nforce 650i,

matx: Gigabyte GA G33M-S2)

I like the idea of small but without losing the expandibility.

As a compromise I thought there might be a small midi tower case available I can put a full atx board in.

Does anybody know what's the smallest half-decent midi tower case I can get for about £30

Thanks