Best Canon offer would seem to be:
350D with 18-55mm kit lens - £357.95 from Warehouse Express
Sigma 55-200mm - £90.74 from tecno.co.uk
Total: £448.69 (prices include delivery)
There has been a thread about the Sigma lens on POTN and the quality looks very impressive for the price. More so (to me) than the popular 70-300mm APO.
If you are willing to mess around with eBay auctions there is an authorized Canon refurb store where you should be able to get the 350D kit for under £300 with full warranty:
http://stores.ebay.co.uk/Canon-Outlet
For landscapes and wildlife an advantage of the Olympus would be its smaller sensor size which will give more reach for the same focal length (helpful for wildlife) and larger depth of field for the same angle of view (helpful for landscapes). The downside for landscapes is that the widest lenses with comparable angles of view cost more and have more distortion because of the difficulty manufacturing lenses with the smaller focal length required.
Also the Sigma lens above will give more reach than the Olympus telephoto, but you can also get it in a four-thirds mount with the effective extra reach for about £2 more than the Canon mount price.
One other difference to consider is that the Olympus has a squarer 4:3 ratio sensor while the Canon has a wider 3:2 (4.5:3) one. Most labs can produce print at both ratios, and many standard sizes will require cropping regardless, so it is just down to personal preference whether that matters to you.
Michael.
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