http://www.bmv.ohio.gov/fees_for_services.stm
This is what the fees were based on. Now, localities are allowed to add their own fees as well.
I don't know what to say to 83bronco, you got really lucky. I had a 96 F350 4x4 PSD and was charged about the same as you but for 1 year. I now have a Silverado 2500HD and am charged the above (up to 3/4 ton) rate.
For the Insurance, I have the same company and pay +/- $10 per 6 months
SRW versus DRW? If I was only pulling trailers and such, I would opt for duals, but since I go offroad with the truck, I felt that SRW was a better option.