Anthony, CadLink is more than just a RIP. It has tools available that would not require to open up Photoshop. it can drop out backgrounds in images, like trees, grass, water, sky, etc. It also can take a small image and increase the resolution of it using fractals. These are just a couple examples of it's capability. We plan on having various settings available for the CadLink rip to give you more of a color boost or contrast. This would give the capability of having the look some are after, while being able to drop the file in a queue to give you more of a color accurate design. What happens when you boost the contrast is you lose mid tones. Some want the mid tones, and some don't mind to not have as much, (for example, detail in hair) just as long as the image looks good printed.
I believe both rips will do exceptional well and appear to be equally simple to use. I don' think the end user will have an issue with either one.
John, as for pricing, I'll have to confirm this, but it's my understanding the CadLink rip is $1,250. There are quite a few features that can be added to it, that you most likely wouldn't need for tshirt printing, but the base price is $1,250.