Of course I'll second Kags recommendation of Steven Erikson as he is probably the best fantasy author out there (and my favourite). The Malazan series is definitely not for the faint hearted though. Every time you think you have worked out what's going on, something happens that makes you question the conclusions you have drawn. If you like re-reading books, this series is the one for you as it has more layers than Shrek's onion.
If you have not yet read them, for dragons, you simply can't beat Anne McCaffrey's 'Dragonriders of Pern' series. That is if like me you like them intelligent, noble, bonding with humans and fighting pending disasters. The series is probably best read in the order it was written in, which means start with
Dragonflight (Corgi Science-Fiction) Each book in the series is a stand-alone adventure so you can get just the one, see if you like it and take it from there. But if you do... well, there are lots of them so you'll be ok for reading material for a while ;-)
There are dragons in Michelles Sagara's 'Elantra' series the first book of which is
Cast in Shadow though they are not the main characters and they are quite different from the Pern dragons as they can and do convert to human shape. The action takes place in an urban environment albeit a fantasy one.
Here is a link to my Listmania contribution which may give you some more reading inspiration...
http://www.amazon.co.uk/gp/richpub/listma
nia/fullview/R2OQUOWNQKUX97/ref=cm_pdp_lm_title_1
Good luck - let us know what you end up with!