I've got a spare Acer WT300 Windows CE Thin Client Base Unit.
Does not have a power supply, so cannot test and selling it "as-is".
If you don't know what it is, then you will probably not have any use for it - trust me.
Power supply required: DC 12V, 3.6A
Here's the manufacturer's description of what it is:
Acer has been on the leading edge of microcomputer systems
development for both corporate and home computing needs for
20 years, as the OEM of choice for many of the worlds leading
computer companies. Acer is committed to meeting the worlds
demand for state-of-the-art computers at the best prices.
Your Window Based Terminal (WBT) configuration provides
flexible feature in a small footprint making it perfect for general
business or commercial use.
The Acer WT 300 system is a combination of one Cyrix MediaGX
microprocessor, a Cyrixs Virtual system architecture enabling
XpressGRAPHICS and XpressAUDIO, an Ethernet Controller
(AMD 79C973), one PCI connector for upgrading to TYPE II
PCMCIA daughter card, and one DIMM socket (which supports
up to 256 MB RAM). The Acer WT 300 system is based on Intel®
x86 architecture with audio capability and 100 BaseT support.
The Acer WT 300 system is one of Acers Window Based
Terminal numerous product line. Its advantages are high
performance, low TCO (Total Cost of Ownership), low
administration cost, good security and seamless integration into
£6 + exact postage cost
It does weigh a bit, so you're looking at *maybe* £6 for postage. If interested, I will get you Royal Mail's exact posting cost, and nothing more.