First "Divine wings of tragedy", you will fall in love with it, so your question will be "fuck, what other album should i get?!", the answer is "The Damnation Game". after you listen to those albums for a time you'll get what SX is all about and then ull have the need to keep listening to more albums, thats where "V" arrives and shows you that theres no other fucking band in the world, ull listen so many times this album that ull have memorized "The death of balance - Lacrymosa", thats when u realize u HAVE to listen to the other albums, i think first "twilight in Olympus", then "the odyssey" and finally "symphony x", the first album, i dont think its a bad album, but i really think u need to be very familiarized with the band before u listen to it, so u can really enjoy it and understand it...
then your question will be... "hey, this is some amazing band...but...can they play these songs live?? i dont really think so..." then u buy "Live on the Edge of Forever" and u'll be able to answer that question yourself.
thats your life between buying "the divine wings of tragedy" and becoming a fan club member, getting their "special edition albums" and getting ur "rarities and demos" cd.
Sincerelly,
Xtopher.