I second the Dreamhost rec. 1-click install *and upgrade* is very convenient, and actually up to date.
But I just play with stuff, I don't have a wiki that actually has any significant traffic.
Brianna
2008/11/27 Mike Maughan mike@maughan.co.uk:
dreamhost.com. Useful for me 'coz I'm not deep-techie enough to want to build my own installs (they do 1-click) and unlimited traffic/webspace/domains on my package.