Is there really good distortion correction software?

MikeFromMesa wrote:

What is a good application to adjust for the lens distortion of UWA lenses?

I have LR4 but sometimes I find that that neither the auto nor manual distortion correction functionality is enough to correct the distortion from some of my UWA lenses and there is no functionality to force lines to be straight or parallel in LR4.

I have PhotoNinja and I can force lines to be straight but I cannot force them to be parallel.

I tried PTLens but found that it does not have any functionality better than LR4 for correcting distortion.

I have CS5 and the Transform functionality will let me do anything I want to photos, but there is no way to force lines straight or parallel (or I missed it).

What is the best software out there (at a reasonable price - I am not a professional photographer) for addressing UWA lens distortion?

Thanks.