Up to you James, but damn!

I think you'll notice a helluva lot more performance gain in buying $850 of Koni's and springs than with tires. I'd go with the Cheap Sumitomo HTRZII's and get Koni's at all four corners.

Your suspension is prolly getting pretty beat as it is 4+ years old too! I have noticed my struts are a lot softer than 1 yr ago. I can tell by how much I rub in the back, 1 yr ago virtually never. Now, a lot more.

Cheap way to get tires mounted is to bring the wheels and tires to store, if thye don't have to mount them on car you can save $$$. That way they don't have to use a lift, kinda what Roman did to me!