For finger picking I recommend Celtic Crossing by William Coulter published at Mel BAy . Althought the tuning on most song is in DADGAD and uses a capo, it's really good to explore new ways of fingerpicking. Great traditionnal/celtic/classical songs. Make sure you have the cd with it. I bought it used and the cd wasn't with it :(

If you want to take your lead skills one step higher, try out Troy Stetina's speed Mechanics. It's rock/metal but the techniques and exercises will blow you away. I gain a lot of speed and accuracy (doesn't always shows) with it.

You can check out my section for fingerpicking tricks but if you're an intermediate player you're probably past them. For some classical peices check Azrael's section. If you can play them all, you've really earned the title of intermediate/pro guitar player!

hope this helps.