So I found a deal on Slickdeals for a Tamron 28-75 lens for $375 and I just wanted to get some opinions before I make a purchasing decision. Let me first say that I've held off buying any expensive lenses for my Rebel XTi up to this point, so all I currently have is the 18-55 (non-IS) kit lens and the 50 mm f/1.8 II. :happysad:

Anyway, onto the lens. It's the Tamron 28-75 f/2.8 XR Di Canon Lens. It looks like it's gotten a lot of good reviews. I keep hearing that since my camera has a crop sensor that the 28-75 is not the true range that I will get. So, what would it be then? Would this be a good walkaround lens for the money or should I look elsewhere?

Here's the deal thread BTW: http://slickdeals.net/forums/showthread.php?t=2028316