Thanks for all of the suggestions!!!!! I've pasted them all in one place so far, so easier to access:
Try usgang.ch or tillate.com for listings
http://www.outandabout.ch/clubs_in_zurich.html
Start with a bar crawl around Niederdorf (old town) and check out bars like:
-Cabaret Voltaire (Niederdorf)
-Eddies Weinstube (Niederdorf)
-El Lokal (near to Sihlpost, Google location)
Check out Langstrasse, and bars/clubs like:
-Gonzos
-Zukunft
Les Halle - ok
Stall 6 - pretty boring and rarely busy. Awful for people watching.
Clouds, the highest bar in Zürich (physically at least) - Posh.
Rote Fabrik - average and overrated place, quite far from anywhere else, and very crappy service. Much better in Summer
El Lokal - good, as suggested
Rimini, on the river Sihl - not even open now... so pointless suggestion
Hafenkneipe - Nothing special, but has live music occasionally...
Schiffbau, has a bar on top - average, and layout not good for people watching.
this is seasonal but should have winter bar: http://www.fraugerold.ch/ - (Summer place)
- Edi’s Weinstube for inexpensive wine and a laid-back atmosphere for chatting.
- Paddy Reilly's on a Friday/Saturday night- usually charts music and a lot of people chatting and dancing.
- Clouds at the Prime Tower, if you want to try some unique cocktails and enjoy a great view of the city.
- Jules Verne bar is nice for this also...
- Barflyz in Enge is another nice place for a chat, with good prices.
- Meyers in Wiedikon is open late, and a fun dive bar.
- Old Crow has a nice atmosphere and an excellent beverage selection.
- Purpur and Carlton are both nice, but a little pricey for what you get (esp Carlton with their Tuesday afterwork ripoff).
I've been in Mascotte, and a few other paid-entry clubs, and they generally get too crowded for me.
El Toro Bar in Langstrasse- for Latin music.
In the Langstasse area:
- Bar 3000 (small but trendy)
- Mata Hari (fun tiki bar)
- Ole Ole Ole (bring coins for the Juke Box!)
- Acapulco (karaoke every Sunday)
- Casablanca (quieter vibe)
- George not off langstrasse but also not too far (retro rooftop bar)