LED RGB crystal ball disco light thing very similar to this (got 2 for $20) http://www.amazon.com/gp/aw/d/B00AMWO44O/ref=mw_dp_mpd?pd=1

I was also looking into the RGB LED flexible/programmable light strips too. A friend had some last year. Great to light up the lair and trippy too.

I don't think more than 100w to power the whole thing but I am not %100.