thanks for all the advice you have given me ref. the upgrade path for my gyro se (ORBE PLATTER AND HR PSU). as you know these improvements will cost 'around' £600. i have sourced a number of s/h orbe se' with the dc motor and orbe controller at the £1200-1350 mark(rrp£2k). mint condition of course. my initial budget is £720, so i can get the upgrades and leave myself a few quid spare or sell my gyrose for at least £630 (i can borrow from the savings for this btw)and 'not need to upgrade later'(YEAH RIGHT!) come on guys, you have been a fountain of knowledge over the last few days and i need your help again. which route do you suggest i take?