OK, I've decided to stick with the OEM rims and after doing some site search keyword lookups I've decided I'll go with the 185/70 R13's. I intend to use the GT for some spirited street driving only, staying below my 2500 mile annual historic auto insurance limit. Sticky, nice handeling tires would be good, treadwear life for me is not that important.
I've looked around on the web for what's available in this size. Not a lot of preformance tires, mostly run of the mill kind of stuff.
My person favorite for my daily driver - a Saturn SL2, is the Pirelli P400, and it comes in the 185/70 R13 size. It's called a touring tire but it's got good dry/wet traction and road feel. Crummy in the snow (I don't care), reasonable price, and it gets pretty good reviews.
If possible I'd rather find a 'sportier' tire for the GT. Would anyone like to share their personal favorite if you can recommend something that fits my needs. Thanks.