Spanish Guitar

Agree with Peaks, Jesse Cook "Vertigo" & "Free Fall" (A little more worldly)
You can add: (Mellower) Govi "Andalusion Nights", Armik "Romantic Dreams",
Chris Spheeris "Eros"
All of these are superb !

Agree with Darrenlite about Ottmar Liebert. Also try Gypsy Kings and Luis Villegas.

Pepe Romero - Spanish Classics, or Latin American Favorites (these are titles). Or anything Spanish of his;he has many CD's, and is a real Spaniard from Andalucia. Has some Flamenco recordings as well. The best.

for 'real flamenco' guitar (old school):
Paco de Lucia, Carlos Montoya, Los Romeros (the 'gran family' of flamenco guitar)
for new school: Tomatito
for 'folk' flamenco: EA
for flamenco 'melange': Radio Tarifa
for the most accessible but truly gyspy inspired: Gypsy Kings
PS: Otto and the like are NOT flamenco, they remind of supermarket sushi!

lest I forget: Bebo & Cigala "LLagrimas Negras"
which isn't a flamenco album per se but a flamenco singer paired with a Cuban jazz pianist doing classic love songs from the 'golden era' of popular latin love songs. This will give you an idea of what a flamenco singer sounds like.
Bebo at 80+ is truly tremendous (he is chucho valdes' father).