I'm not aware of any way around the limit on ranks, but I did once see a claim it was possible. Sadly, the poster who made that claim has since left the site (I think), and as it was an aside to the debate at hand (which was already over-heated), I didn't ask.
Edit: I've done a little research, and it appears that the 'trick' is to use something like the Bard's "Inspire Greatness" ability to gain extra HD, then use something like Psychic Reformation to reallocate your skill points (to the new, higher limit), and the job's done. However, the big problem with this is that it doesn't actually remove the "max ranks is level +3" limit, which means that when those bonus HD wear off your number of ranks drops back to normal. So the exploit doesn't actually work.