Well, I actually pulled it off! My 'rents-in-law and I have been planning a surprise party for dear sweet hubby for about 2 months now. We did a movie theme, to go along with his current occupation and his general love for cinema. His mom made two wonderful cakes - a clapboard, and a movie reel. And our friends from a singing group we used to be a part of helped out with all the food. I made a slide show of pictures of him (I love iPhoto!). We had about 60 people in attendance, which was a great turn out! I was so excited, and very appreciative of everyone who helped out and attended.
And the best part? He was completely surprised! We had told him that he was needed to play dinner music for a birthday party, and he even had his stack of music with him as he came in. He had no idea! I was pretty much resigned to the idea that he would figure it out at some point, or at least get suspicious, but he never did. I was very pleased with our success. The downside is that he's sworn to never believe anything his mom or I tell him ever again. Eh, I think it was worth it!