After going through a lot of studies and experiments you have finally decided that a digital camera would suit your purpose most. You have also taken note of the brands and models that would suit you the best. Your list contains a few digital cameras that are popular to day like the Canon PowerShot S3 and the Canon Rebel XTi Digital Camera. There are also a few others that you have in mind.

One question that might confuse you in the process of selection of the digital camera that would be most convenient for you is whether you should go for the conventional digital camera or a combo. A combo digital camera combines the features of conventional digital camera with a camcorder. There are quite a few brands and models available in the market. However, for the best of information you might take a look at the Best Digital Camera Reviews. Such reviews are available in plenty on the nets which is a better option compared to the books and periodicals that would provide only limited information. 

If you wish to have expert opinion on whether the combo that combines the features of a camera and camcorder with digital recording facilities, you may opt for expert advices. Such advices will be available with your known experts in the market or you may visit the blog sites like the Cool Gadget Blogs where you will find a lot of discussions on the features of a combo and their comparison with conventional single function digital cameras.