If budget is a problem, why not consider the 135mm f2 or 200mm f2.8 primes - not as flexible, but I used to get good crops from my 135L on my old 450D - it's easy to say 70-200 f2.8 IS when it's not your own cash - search around for a local specialist photography shop too, most sell second hand and the 135/200mm primes do sometimes come up for sale.
Upvote
0