Thought this might be useful.
Name/Series Summary FAQ
Final Fantasy Legend for GB rereleased for WSC a.k.a Makai Toushi SaGa (Demon Tower Saga)
Final Fantasy Legend II for GB a.k.a SaGa 2: Hihou Densetsu (Saga 2: Secret Treasure Legend)
Final Fantasy Legend III for GB a.k.a. SaGa 3: Jikuu no Hasha (Saga 3: Ship of Time & Space)
Romancing SaGa for SNES, Japan only
Romancing SaGa II for SNES, Japan only
Romancing SaGa III for SNES, translated
SaGa Frontier for PS
SaGa Frontier II for PS
Unlimited SaGA for PS2
Fansites
FFL @ Fantasy Anime
FFL2 @ Fantasy Anime
FFL3 @ Fantasy Anime
RS3 @ Fantasy Anime
SF @ Fantasy Anime
GameFAQs
FFL1
FFL2
FFL3
RS1
RS2
RS3
SF1
SF2
SU1
Translation Sites
FFL1 (WSC) @ Whirlpool
RS1 @ Whirlpool
RS2 @ Whirlpool
RS3 English Translation by Mana Sword et al.
That should be it, if there are other useful sites just post them after this. (If you cannot tell by now I’m a fan of the original three.)