The October issue of PC Magazine includes a thorough review of almost two dozen low- to mid-range digital cameras. (Here's the whole thing on one page, so it's less annoying to read online.) It's done well, but since it had to go through several weeks of preparation for the print magazine, it's already well out of date.
For instance, the magazine recommends the Fuji FinePix F601 over the Canon PowerShot S330, but Canon has just introduced the S230, which, confusingly enough, is probably a better camera than either in everything but zoom power. Other manufacturers have also introduced new models since the article was written. Still, the overall guidelines are good, and it's a reasonable overview of the consumer snapshot digicam market right now -- or a few months ago, anyway.
For up-to-date reviews, I recommend the Digital Camera Resource Page and other similar sites. Today's news bulletin at DCRP alone, for example, lists five new cameras from manufacturers in PC Mag's review.