Just spotted a lot of Casio models on the Argos Ebay outlet, (Argos Clearance Bargains) lots of watches including a number of Casios at extremely good prices:
AQ-161W-2EVEF - £16.99
AQ-164W-1AVEF - £16.99
WV-59DU-1AVEF 5 band WaveCeptor - £21.99
WVA-109HU-1BVER 2 band WaveCeptor - £23.99
BG-169DB-4ER BABY-G - £23.99
WVA-107HU-1AVER 2 band WaveCeptor - £24.99
All plus around £2.99 postage
I have just ordered the bottom 2 on the list, around about half the normal price or thereabouts. There are a few 'G's but not at such good savings as the ones listed above. I don't think I've ever seen a 5 band Waveceptor for under £22!
Hope this helps someone out.