Your website has defiantely moved on since I last had a look at it and all for the better too
Regarding the VAT, Im sure that on UK retail webshops, to avoid confusion, you either have to show the including VAT figure on it's own, or you have to show BOTH inc and ex VAT amounts. I'd check it our with the tax man ! I know you offer a click to show inc or ex, but i think you have to have it shown as standard.
Unless your going to updatet eh site on a daily basis, I thnk you shuld remove the "Site Updated . . . " as of today its indicating to your customers that the site data is 3 days old. 3 days is a long long time in computers, especialy considering the volitility of memory and cpu prices.
Your menu system is cool !!! Nice and simple.
Behind the scenes : Yu appear to be missing some vital meta tags, this will be having a considerable effect on your SERPS. If you require any suggestions improving this, PM me.
Overall, a good clean and nippy site ! Nice touch !!