corbel.

Eurotrash Bold

Times New Revit

Steven's Holl STD

For free fonts, I'm a big fan of the League of Moveable Type, I've used their League Gothic a lot, and Junction doesn't look bad either. But really, there's a million things out there that are perfectly nice, and more that can be made acceptable by being set well.

League of Moveable Type is a great resource for some free, high-quality fonts. Good recommendation from Erin Williams.

Lost Type Co-op is another awesome site, which has a pay-what-you-want model. The typefaces on there are more graphic, display faces, but they might work in the right application.

For purchasing fonts, there are a lot of great type designers out there, such as Hoefler & Frere-Jones or Linotype, and you can find great fonts on sites like FontFont or Font Shop. You'll find more sophistication with purchased fonts typically, and with an array of weights and contextual ligatures.

Whatever you decide, choose a set of fonts that have contrast – differentiation of weight – to be used for headlines, paragraphs, and captions. Don't use just a single font throughout, as the same type that works well for large uses probably won't be very readable in a body setting, and vice versa.

Some good modern fonts to consider (that aren't Helvetica): DIN, Sabon, Gotham, Avenir, Clarendon, Trade Gothic, Futura, Knockout, Whitney, Verlag, Neutraface, Rotis Sans, Univers, Scala & Scala Sans, Maquette, FF Bau, Brandon Grotesque, just to name a few.

I have used Helvetica (light and ultra light, mostly) and Adobe Caslon (in italics and with swash alternates for titles) all the time.

My advice: keep it simple and down to 2 or 3 fonts. use simple and easy to read fonts and allow a bit of glamour or tackiness/ or whatever goes with you and your work in titles.

www.fontsquirrel.com/

Comic Sans. 

http://www.mcsweeneys.net/articles/im-comic-sans-asshole

Thanks a lot everyone, it has been really helpful...particularly the free font sites...  Rusty, are you a complete loser or are you just unemployed?  maybe instead of posting over 2,000 useless comments you could apply for some jobs...

century gothic ftw

+!

Century Gothic

I would not recommend Century Gothic or Corbel – both are system fonts that come with Windows and they look too common. Century Gothic in particular looks very tired to me.

The League Gothic and Junction fonts mentioned here might be good, though Junction has a few quirks that make it seem playful, which might not be what you're going for. Junction itself is clearly based on News Gothic / Trade Gothic, which are good pairings with League Gothic (which is itself based on Alternate Gothic). I use Trade Gothic frequently, if you want to consider buying a typeface family that you'll use for the rest of your design career, get Trade Gothic.