It won't be cheap!
The G-Shock GW-A1000D-1 will retail at ¥71400 which is around USD$900, GBP£550 or €690 - this is the version with the metal bracelet.
The G-Shock GW-A1000-1 will retail at ¥56700 which is around USD$710, GBP£440 or €550 - this is the vanilla version with a resin band.
The RAF x G-Shock GW-A1000RAF will retail at ¥67200 which is around USD$840, GBP£520 or €650.
All prices from Japanese retail. Normally US retail works out a little less, UK and European retail about on par. Should be cheaper via eBay anyhow.
The video above gives a good overview on Smart Access. Functions can be selected using the large crown.