buying a 350, but need a decent landscape lense, suggestions please.

[rlm]

Now that the 350D has come down to a more palatable price I've decided that I'm going to buy one, ideally before my holiday to the lake district at the beginning of November. My biggest problem though is buying a lense, I'd like a decent quality one suited to taking landscape pictures while I'm there but I'm not sure what to look at. £400 would be the max I'd really be willing to spend on the lense, can I get a decent one for this or should I just buy a decent high zoom compact for now along the lines of the Panasonic Fz7 etc.

Please give me some suggestions, I've currently got a Sony DSC-V1 that’s served me very well but I'm finally ready for the upgrade.

Thanks.

 

[rlm]

Although I like the idea of a 10-22 or similar my concern is that maybe they're a bit too specialised, I want to avoid buying lenses that are as dedicated as those seem to be. I don't think I was specific enough with my original post. Some general use would be good too, I was looking at the Tamron AF 28-75mm f2.8 XR Di Zoom, I know its way under budget but I think it should be a more varied lense and hopefully still wide enough for decent landscape stuff? I assume 2.8 should be ok.