The Obsidian Trilogy is pretty good. I read it. I really enjoy the whole aspect of Wild Magic she uses. Her Valdemar stuff is good too but most of it is nothing spectacular.
Mists of Avalon by Marion Zimmer Bradley is a classic. A must read in my opinion. Set in the time of King Arthur, we see the events from perspectives of females. Quite the interesting read as it gives a different side of the story. Bradley does quite the research into Wicca as she uses as the basis for the magic of Avalon and its priestesses.
Name of the Wind by Patrick Rothfuss is amazingly well written. I can't wait for the second book.
The Chronicles of the Necromancer series by Gail Z. Martin is rather interesting. The first book is
Summoner. Deals with necromancy in a more evenhanded way, unlike the typical necromancers-are-evil trope.
Artifacts of Power series by Maggie Furey was like my gateway into fantasy. I really like it. The first book is
Aurian. Magic is a rather divided into the four basic elements but with an added twist, they have counter parts!
If you like things dealing with queer issues, both the
Tamir Triad and the
Nightrunners series by Lynn Flewelling deals with those.
Tamir Triad deals with the gender identity while
Nightrunners deals with homosexuality. While in the
Tamir books the whole gender thing plays a pivotal role in the plot, the homosexuality in
Nightrunners is more of a secondary fact of the two male protagonists.
(SPOILER)Actually, I think Alec and Seregil are technically bi, but they are a couple nonetheless by the second book.
Actually, there is a lot I would recommend, depending on what sort of fantasy you like.