I have a little dot 2++ for occasional use (bedroom)
and a fairly modified (caps, signal cable, Hexfreds for diodes) G&W TW J1
http://www.china-highend-hifi.com/prod01123412233.htm
The J1 cost £55 and was brought back by a pal who works in China on and off.
The Little Dot I bought from the manufacturer via Ebay - arrived well packed and quickly.
Both work well and sound good in their different ways.
The J1 is very clean and crisp the Little dot warmer. Both have bags of power and will drive any type of phones. I've used Grado SR-125's, Sennheiser HD-650's and my portable Audio Technical ATH ANC7 (noise cancellers) with both.
Both also work as pre-amps, the J1 is actually pretty good but not as good as the Promethius TVC.
I have had a Project Headbox. Both of the above beat it for sound and auditioned a Creek OBH-21 SE - good but I like my J1.
This one looks interesting
http://cgi.ebay.co.uk/6p13p-6N8P-St...tcZphotoQQssPageNameZWDVWQQrdZ1QQcmdZViewItem
But I don't know it from Adam - there's so much about Little Dot's sellers / reputation and aftersales to draw on - you know it will be ok...