peccato,

Why not get a 50mm f/1.8 Canon lens and use that as you save up for more lenses. Getting a prime lens is a good idea, as it helps you learn to use the camera with a fixed focal length, you will get good light and also learn to use your head to frame and capture the image better. Then you will be able to see what lens lengths you might need. What type of photos are you looking at taking, you haven't mentioned that I think in your posts so far, well not that I have seen.

Buying the correct equipment is a hard decision I know been there done that myself.

I personally, now after 4 years since getting in to photography more than just happy snaping, realised that I didn't research enough about cameras and lenses and have learnt a lot during this time, mostly from forums like this. I don't think you will be satisified with the f/stops of the lens and low light situations. That is certainly what I found, I still have the kit lenses I bought with my Elan 7/EOS30 here, used them both about 3 times and then went out and purchased a 28-135IS lens, much better lens but still the f/stops at low light are a bit of an issue, although the IS compensates for that.

You really need to shoot some images with the lenses and see the difference if you can, take a series of shots inside the cameras store and have them printed first then make a decision from there.

I hope that helps you with your choice.