Well I'm around if you want some advice on decent grunge.
Mudhoney's had a fairly new album, it was sweet.
I mentioned it in another thread I think, but Love Battery is psychedelic Grunge, also pretty sweet to listen to. Nirvana's most widely available so it's probably the easiest first step into Grunge, though not necessarily the best. Also if you're wanting some metal with grunge influences I cannot stress how completely mind-blowing the Melvins' music can be.

Like grunge with female vocals? I'd recommend L7 (not to be confused with L-seven) and 7 Year Bitch. Both great bands. And Hole's awesome for a listen too.

Pearl Jam, I find the older stuff was better. Like the albums Ten and Vitalogy. It's not to say later albums like No Code were bad, merely I preferred the sound of their older music.

Anything else you want to know about grunge, give me a buzz via PM or something.