Bluenose,
hit the flightsim webring where you will find a huge list of amateur sites with all types of downloads to choose from.
For nav, download FS Navigator which is a great utility with world radio navaids,flightplanning, etc..
Also you can find SIDs and STARs for the major airports around the world,usually in PDF format:you just have to hunt around.
Happy surfing and flying!