iPod custom speaker system.

I'd like to build a "plug and play" speaker system for my wifes I pod. I'm looking for suggestions on a compact system that has decent but not audiophile quality. I've been trying to figure out a way to do one of Mr. King's ML-TQWT's as I've been extremely happy with my set, but the desire for a compact system has made that design difficult. I plan to build my own amplifiers for the system, and a small integrated subwoofer is not out of the question. Any suggestions for 5'' or less drivers and thier minimal space configuration?
 
The Tangband W3-871S is an option although there is very little response below 100Hz. You may want to consider the Aurasound NS3-193-8A.
http://www.timn8er.com/Aurasound NS3.htm
It's a very pleasant sounding driver although sensitivity is quite low.
An excellent 4.5 inch driver is the WR125S from Creative Sound.
http://www.creativesound.ca/details.php?model=WR125S
It starts rolling off around 12K but for an Ipod station or PC speaker those extreme highs will probably not be missed. The rest of the spectrum to a low of 60Hz is very nice indeed. It will need a 7 liter ported cabinet.