http://www.chandrakantha.com as a good starting point for investigating Indian Music.
http://www.silverbushmusic.com has all sorts of links as well as being a stockist of instruments.
http://www.sitarsetc is the resource for all things on the sitar.
A rather spiffing book is 'The Raga Guide' by Joep Bor published by Nimbus records which includes a 4 CD set of recordings, and each raga is notated in both Indian and Western notation. Really excellent.
This last one's available from my fave Indian Music shop in Southall, Jas Musicals, who are unfailingly pleasant and helpful.
Lots of Ataris which keep on going, 12 Kurzweil 1000 modules, a bunch of hardware synths. Still recording to tape -the old ways are best.....