Tell us what u want to do with the pictures, online gallery, prints(small? large?), or possible exhibition?
In general, Jpeg is enough for personal use, such as gallery, albums and to a reasonable size print(depends on camera) without lose any quality of images. Raw is more of a format for pros/serious amatures, it's much more flexible and much more complicated for image manipulation, in order to achieve the results u want, and of course, u'll be needing suitable software to process RAW data.
I've been primarily using jpeg on my 10D, and lately i've started to play with RAW. Give it a go, see which one suits u the most, u might find jpeg is a lot more straightforward tho'.