Hello, Robert and everybody!  Thanks for your kind reply.  I'm a beginner
guitarist, and my musical knowledge is very limited, but I'd recommend
you five must-buy CDs that could serve you as "starters" for exploring.
Sorry if my choices are too evident for you.  In this case, keep open the
communication and I'll send you other (more adventurous) recommendations.
Note that I've not included arrangements and transcriptions, only original
guitar music.

Nocturnal by Julian Bream (EMI).
My prefered works by Frank Martin, Benjamin Britten, Leo Brouwer (maybe
the best composer for guitar), Toru Takemitsu and Ludolf Lutowslaski.
The playing of Bream can be histrionic, but he's my hero!

The Black Decameron - Leo Brouwer Music by John Williams (Sony).
An all-Brouwer CD featuring "steel-fingers" John Williams.  Maybe a bit
cool and mechanical (check The Guitarist album for a sweeter playing)
at times.  It includes the Toronto Concert, a neo-classical work with
afro-cuban infectious rythms that cannot let you indifferent!  Also
included:  Hika, in memoriam Toru Takemitsu, one of the best guitar
works ever, IMHO, in a completely different vein, talking about death...

Manuel Maria Ponce - Complete Guitar Works by Gerard Abiton (Distrib.
Harmonia Mundi)
Check the 3rd of this collection.  Variations et fugue sur La Folia, Theme
varie et Finale and Variations sur un Theme de Cabezon are all three major
works of the guitar repertoire.  The modern classical guitar at his best!

Newdance by David Starobin (Bridge)
Nominated to the Grammy's.  This includes a wonderful collection of new
works for guitar, all styles, by composers as different as Milton Babbit,
Jorge Morel or Poul Ruders.  Come and see what is going on in contemporary
guitar music!

Guitar Recital by Jason Vieaux (Naxos)
Mostly contemporary latin-american music, played at the highest possible
level of tecnique and musicianship.  Maybe some of the pieces doesn't reach
the heights of the classical music listener, but damn it's beautiful music!

Sorry if you're not interested in this thread, I'll be shorter the next
time.

Best regards,
Juan