I love Canvas Eagles rules (
http://www.generalissue.com/canvas.html) - well done, lots of player and club support on the associated Yahoo sites, and based on the popular (but out of print) Blue Max. Best part to me, it's free - just download and print out rules, aircraft charts, even instructions for basing your models. It is playable in both 1/144 and 1/72 scales. We are playing Blue Max here locally, as several of the folks in the group have that set, but there has been discussion to switch after our current campaign.
I went with 1/72 for my eyes as well. I used to have a great time painting 5mm Napoleonics and stuff, but about 4 years ago, went from perfect vision to bi-focals. I am doing Korean War air combat in 1/300, but there isnt as much to do except a few stripes and some decals and they are ready to put on the table. I have found a good selection of kits so far, more than I have had time to build

, and have decided to give vacuform kits a try. If it wasnt for the gaming, I probably would never try one of them, and the limited run kits are on Ebay all the time for very good prices. I got a Hansa Brandenburg W-29 flying boat kit made by Meisterkraft - lots of flash, but a pretty nice kit overall. To me, it is an opportunity to build a nice model and use it as a gaming piece rather than the other way around, although I certainly would have more room to display the smaller models than I do for the 1/72 scale stuff.
Tom Oxley