Sound cache: Do we actually need it?

[David Smith]

	I was experimentally switching our sound cache over to use <censored  
10.6-only API> to see how it worked in actual usage, and I realized  
that I'm not sure anymore if we need it. Would someone with a slower  
machine (5400rpm disk preferably, PPC preferably) be willing to try  
using sounds heavily on a non-caching build of Adium and see if it  
lags at all? It's possible NSSound is caching for us and we can  
simplify.

							David