I myself am a former owner of the XP-60, and I must say it was one hell of a nice synth...
One thing you really have to take into account is that the true (sound power) behind the XP series is in the expansion boards.. Roland gave the XP's a decent sound set, but if you really want to good sounds you'll need to look into the boards..
Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.