I've played with Gallery, and found it useful for splatting a large number of photos online. It's not as satisfying as custom web pages, of course. One of the features of newer Photoshop versions is that you can select the images you care about, in the Browser thing, and say "make me a web page" and it does everything, resizing, HTML generation, even color space conversion (e.g., from Adobe RGB to sRGB). My "new" pipeline for web production is probably going to be using Adobe's tools to generate its web page, but then I'll throw out Adobe's HTML and write my own for the summary screen (and my shell scripts will write wrappers for the zoomed-in images).