I have been using the Yamaha SY-99 for more than 10 years now and am now looking to invest in new equipment. Was wondering if anyone could provide some advice on the following two options, and which is better, cheaper, etc.

1. To purchase a music workstation (synthesiser and built-in sequencer) such as the Yamaha Motif.

2. To purchase a synthesiser with good sounds, and a separate external sequencer.

*Preferences - my only preferences or requirements are good acoustic sounds (especially for orchestral instruments - piano, strings, brass, wind, percussion) and also good bass sounds and a good drum kit.

Would really appreciate any advice on this. Thanks in advance.