I have had my fair share of experience with Roland keyboards. AFter the G-800/G-1000 era I moved onto Solton/ketron and later on to Korg. (PA-80).
One of my best friends plays the G-70 and whenever I seat myself at it I get totally frustrated about this instrument. So if Spalding is afraid to say it I will chip in for him; This keyboard doesn't do anything for me. and the programming (of which you have to do mega quantities to make it sound right) is simply desastrous imho.
If you don't want to do too much progamming I guess the Tyros 2 is your safest bet, whereas personally I favour the PA1X for being more true to life,i.e. sounding like a true band.