iPod docking station to replace Bose Acoustimass 3

Hi, I have £200 (ish) to spend on a docking station to
replace my Bose Acoustimass 3.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" />

My living/dining room is 24’ x 24’.

I’m happy to look at second hand or ex demo to get the most
for my money.

So far I’ve found… I-Deck 100, Geneva S, Sound Dock 2 and
Mini Zep.

What would do the job best? Or should I look at others?

Thanks