Yeah, go with the Toytec. I have heard that the Tuff Country is a pretty harsh ride. Go with the Toytec w/ the 884 coils for the softer ride, 885 for a medium ride, and 886 only if you plan on doing the ARB bumper.
i love my tuff country. it's taken a beating for the last 11000+ miles and still going strong. easy install, quality components and not too much $$$$$. i don't think the ride is too harsh but then again my other truck is a 91 gmc 3/4 ton with 35's and i did also think that the Tacoma was soft for the 62 miles i drove it before the new wheels, tires and lift.