After talking to a bunch of you folks here, as well as some of the photo guys at work, I made the pilgrimage in to B&H on Sunday and picked myself up the Canon 100-400mm IS lens. Wow, is this thing nice! Since it was a nice day, and there wasn't much of a crowd, I headed over to the Empire State Building (haven't been up there since I was a kid) and spent over an hour playing with it. Looks like I'll be working on photos instead of work this afternoon :D
Thanks for all the great advice guys!
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