Yes, there is Doug...

First off, don't resize all at once. It needs to be done in at least 2 stages, 3 for larger scale amounts.

After each scale, run the Unsharp Mask filter with settings of: 100% / 0.5 / 0. If that doesn't 'appear' to sharpen enough, then set the "Amount" to equal 150% instead.

See if that helps.

"The lessons to be learned, are found along the path of your journey, not at your final destination. That is only where you will rest, between lessons"