Im personaly using the Weaver brand extra high 1 inch rings. they can accomodate up to a 50mm scope. As I said my scope is a Simmons Truplex 8 point 3-9X40mm, but the height of the extra high ring set is the perfect height for the scope( for best eye relief), for me at least. I got the set at Walmart for $9.69. Its is actually the same price for the shorter or taller rings set.(at my local Walmart at least)
Thanks DR&U, extra high it is. I'll take a ride to Walmart this afternoon.