The 0308XPMW is a wonderful chip. Week 10's doing better than others is a complete misconception, in fact, the 0308's were probably a little better than the week 10's, 0307's being the best for air. The first letter is far more indicative of overclockability, btw. But don't worry yourself over week numbers or letter codes. It does seem like DLT3C's are in very short supply these days, especially outside of the U.S. Eglobal seems to be out of them; all they've got now are DUT3C's. My suggestion would be to get a 2500+. Just about every Barton I've ever seen with good cooling and a good mobo has made it to at least 2.3. The newer weeks are proving to do still better, and 2.5 should be quite possible with them. 2.4 with a Barton roughly equates to 2.5 with a Thoroughbred, so there's no going wrong with it. It is pricey though, but I doubt it could vastly exceed the price of finding a DLT3C from a North American retailler, and then getting it shipped to the UK. Another good option is the 2100+, AIUHB. The better weeks are nearly impossible to find these days, though, so its probably in your best interests to invest a little extra into the Barton, which has a good chance of exceeding both the 1700+ and 2100+ in performance.