Help - Canon S1 IS owners

[Ex-Biker]

I am looking at increasing the flexibility of my S1 IS.

I want to buy a telephoto and wide angle lens.

How much should I expect to pay?

Doesn't need to be Canon stuff but all I can find at the moment is:

Canon parts
LAH-DC10 adaptor - £25
WC-DC52A x0.7 wide lens - £95
TC-DC52B telephoto lens - £95

or www.lensmateonline.com/buy5.html
Lensmate adaptor - $22.95
Raynox DCR 720 .72X - $59.95
This looks the best but I am wary of the 'import costs' that 'could' be added.

Any other ideas?

Can I buy the adaptor then get 52mm lenses from Jessops etc?