Just to throw some quick jabs, Daisuke's pseudo-screw was in full effect as you watched the Red Sox Nation roll on to sweep the WS!!!
I agree, Zelda was awesome, but come on guys, we all know the only game is Contra!!!
As far as manual dexterity, I can agree with some of the prior posts in saying that musical instruments are probably one of the best. I think when you hear about video games being used by surgeons to stay sharp, its more for the hand/eye coordination part of it. If all we had to use was our thumbs for surgery, I'm sure everyone would be a DMD or DDS or otherwise.
I'll also agree with the post about working on things. I firmly believe those of us with technical talents are a little ahead of the game when it comes to working with our hands. I have worked in a race engine shop for the past 3 1/2 years and I can honestly say that I can draw a correllation between doing the machine work necessary to build a competition race engine to procedures required by a dentist to alleviate a problem in the mouth.
You, along with most of the others I tell that to, may think I am on crack for saying that, but it turns out one of my vendors spent 22 years making dental appliances, and now makes titanium parts for engines and he agrees with me 100%.
Something else with my work and hobby experience that has really helped with manual dexterity is tig welding. With this style of welding you have to use both hands, one holding the torch or basically the electrical arc, and the other holding a filler material (stainless, aluminum, steel, etc), and one foot controlling the amount of current supplied to the torch. Some of the stuff we have to weld is fairly intricate and needs to look nice, so you eventually get good at it. The only problem with welding is knowing what to do when there are impurities in the base material and having the knowledge how to get around the problems in order to get to the final outcome.
So, I believe anything that requires you to let your eyes lead your hands in some manner that is going to require skill and some degree of precision is what you are after. Sculpting, instruments, typing, welding...I'm sure you can probably think of something that you can relate to more than video games that will aid you in your quest for better manual dexterity.
Hope this helps.
G