Will this lens work okay?

[KaraM]

I've just gotten my first digital SLR (Rebel XTi) and don't have any lenses other than 50mm f/1.8. One of the things I would like to do is to photograph some of the events at our church - especially the upcoming baptisms and confirmations at Easter. I would have to be 20-40 feet away from the altar. I am considering buying a 28-135mm f3.5-5.6 IS as my "starter" lens until I can set aside the money for something better. Will this lens work well in a fairly well-lit church? If not, what lens ($500 or less) would you recommend?

 

[MPowerM3]

As I am looking for a lens to do similar work, I've been eyeing the the Sigma 24-70 2.8. Its fast, good range, and awsome in not so perfect light with the the fixed 2.8 aperature value. Its around 380 at sigma4less.com or around 430 at bandhphoto.com. This is a lens I will buy sooner then later.

HTH