Where can I buy this game? Also, are there any downloads of this game which doesn't require a disc? If not, I'll just have to buy it on ebay. (though I'd prefer a download(if thats possible))

eBay/Amazon and such are the only options for Redguard.

Redguard and Battlespire are always quite elusive when it comes to procurement. Check eBay.

If that doesn't work try to convince them to release it on steam or GOG.com or something similar.

ebay is your best bet. That or get lucky and find it at a store that sells used games (NOT gamestop). I seen games at half price books, that may be worth a try.

It is worth it to, trust me.

If they released Redguard and Battlespire on Steam I would buy them instantly.

/rolls eyes
What he means is, "the games are hard to come by, check eBay.