Kieran,
I tend to avoid those themed dinner shows so can't answer your question directly, however I would highly recommend La Nouba at Cirque du Soleil (I've seen this twice, probably the best show I've ever seen). This is located in Downtown Disney.
BlueMan Group is also another brilliant show at Universal's Citywalk.
You say you're returning to Orlando so maybe you've seen both already, but just thought I'd mention in case not. (Both are pretty expensive by the way)