If I had to keep one arranger keyboard it would definitely be my G1000. Fair enough I've got an SD1 and Tyros 2 coming this Tuesday, but for ease of use in a live situation the G1000 wins hands down. It's such an easy instrument to get along with. Decent styles (loads of them without going overboard with fancy twiddly bits or ridden in FX), sounds are very good to say how old it is getting on and the keys are great to the touch. This still has to be one of the best for 2nd hand deals if you can locate one.