Ideal hardware for squid proxy server

Hi List,

I'm running squid with 3Gig cache on an IDE hard disk and pentium 133 with 64 mb of RAM under Linux Redhat 5. It works
well, but the server is kind of overloaded. The hard disk is spinning all the time and it is not as fast as I would like to. So I'm
thinking on upgrade the hardware to improve performance. I would also like to increase the cache size to 9 Gig. Should I
buy the fastest SCSI disk available, or an IDE disk will do? Is it important to upgrade the procesor, or more important is to
increase memory, or both? Any advice would be great. Thanks in advance,

--
Nicolas Gudino
House Internet S.R.L.
Buenos Aires - Argentina