Hi....I am pretty new to this forum, so basically just looking for some advise . I am due to go to South Africa on Safari towards the end of November and looking for a good lens to take along with me. I have a canon 350d, and looking to spend around £450 - £500. Currently the lenses I am looking at are: 1. Canon 70 -300mm IS 2. Tamron 18 - 270mm 3. Tamron 28 - 300mm I believe, and correct me if I am wrong but I have read a lots of reviews, saying that image stabilisation on safaris is a MUST. Could anyone let me know what they feel is the best lens out of the three above or better still recommend a lens the £400 -£500 mark that would suit my requirements. Any comments greatly appreciated.