Hay Bugsy...
If you think you are getting a deal, go for it. But I had the g-2 up grade with RF and started to have problem with the g-2 up grade. first check with GP tech. people to make shure this out fit will work on your pc system. I ended up sending in my g2 & Rf disc to get a g2 current version prior to the interlink comeing out. Sounds like with all three add on you may have a deal.
nedyob