Recent sensors are also less attractive to dust - iridium coating or some such thing. Have you had much trouble with dust on your 30D, Bob? My A100 (which has this tech) has occasionally manifested a few specs, but the sensor shake procedure does the trick on it.
Agreed on Jessops - you can almost smell the company dying every time you set foot in their stores. They know sweet FA about the cameras, too. They killed the local stores, and now online traders and the end of the film age are killing them.
A few deals I saw - Park Cameras (and others for the Canon promo at least) had £50 cashbacks on the Canon 450D and the Samsung GX10, which I thought made them good deals. The 450D kit is still a bit pricey for the budget, but the 18-55mm IS lens is credited to be
very good. Without the cashback, it costs nearly as much as the
Sony A200 and
Tamron 17-50mm f2.8, and I think I'd opt for the f2.8 lens given that choice.