One of best tutorials ive done, (couldnt even get through some they were quite boring lol) is this one: http://www.3dbuzz.com/vbforum/sv_dl_tr.php (you have to register then scroll down to the php/mysql section)
Its a video tutorial and you have to register, proberbly equals to afew hours of learning. I think. But its free, its a cool siteto with loads of free stuff, (just love the site). Check it out, I think ive got the basics down, but there isnt any more advanced stuff, which is a shame.