I like those, they look good. Those are 8" wide so a 235 is the minimum width that I would go with especially for rim protection. So 235/40R18 which is the stock size in the Ti handling pack. I just went with 245/40R18 which I like better.
If I were you, and living that far south I would get a "summer only" tire. Better performance, better grip, decreased braking distance, better wet handling. Just find one with a 30-40,000 mi warranty.
<>< Gal. 6:14
April 2013 HOTM
2013 Ford Fun Weekend: Show Class Winner