JamieBrown - 4:47 pm on Jul 29, 2008 (gmt 0)

As for the SEO aspect, I don't buy it

Unfortunately, it does work - on pages that have very little text and where text can't be easily implemented, putting carefully targeted content into ALT tags can make a very positive difference to the SERPs.

I'm not talking about spammy keyword stuffing techniques, but just making the ALT tags a little more descriptive and keyword rich.