Take a look at the Apache Portable Runtime: It will increase Tomcat's performance regarding static content sigificantly:
http://tomcat.apache.org/tomcat-6.0-doc/apr.html Cheers Gregor -- what's puzzlin' you, is the nature of my game gpgp-fp: 79A84FA526807026795E4209D3B3FE028B3170B2 gpgp-key available @ http://pgpkeys.pca.dfn.de:11371