All components to rebuild the bike will be readily available. The main thing that will have changed between your frame and a modern one will be the frame geometry, but if you were happy with how the bike rode before, no reason not to rebuild other than cost.

Get some nice rock shox forks, mavic rims and xt kit and it will do you proud. It would have had magura hydraulic brakes before which were very good, and still used by many trials riders. Unfortunately due to the age of the frame, there is no provision for a rear disc brake, and most people run discs nowadays. You could run a disc on the front and a magura at the back. Worth pricing things up and comparing to a new bike.

www.chainreactioncycles.com is one of the best sites for bits.