Not bad. However, the tweeter behind the floppy slot might be a bad idea. I would instead choose another driver, maybe a fullrange speaker, either a very cheap Tangband or something like a Mission koax.

Anyways, here is my vote for the best hack:

http://www.kiwidee.com/kiwidee/cs_e.html

An iMac with a coffee maker inside. With milk frother option. |)