Are you going to develop any of these, or are you just hoping to sell them?
If you are just looking to sell, then fresh regging .org and .net, and domains with dashes, at this stage is a little more risky than staying with .com's. Not to say they don't have value or you won't sell them, but .com's are an easier sell.
Your sig has some good 3D tech domains, particularly 3Dsmartphone.com - it looks like there are some 3D smartphones being launched. The two .co.uk are good too, popular english country code with good population.
You should start a blog or webpage on 3D technology, I'd put it on 3Dsmartphone.com and talk about upcoming launches, products, etc. (Actually looks like you've already done this, does the page get updated regularly?) Point some of your other domains to it. You can make revenues through ads and it could make the domains more attractive to a potential buyer, seeing them in use. Good luck.