Trying To Decide...

[Rabulias]

No, I have the following books for 3.5: All three core books, Savage Species, Complete Warrior, Complete Arcane

Savage Species released in April 2003, and while it claims to be 3.5 compliant, it may still have some 3.0 elements. It did not get a 3.5 update booklet released, AFAIK.

and not sure if these were 3.0 or 3.5: BoED, BoVD, MM2, MM3, and Fiend Folio.

MM2: 3.0 (Sept 2002)
BoVD: 3.0 (Oct 2002)
Fiend Folio: 3.0/3.5 (April 2003; started to incorporate some 3.5 changes (skills and feats), but there was still a separate 3.5 update booklet for it.)
BoED: 3.5 (Oct 2003)
MM3: 3.5 (Sept 2004)