TheRaven64's Journal: Who Makes Nice Opteron Systems?

I have been told the I am allowed to spend some equipment budget on a nice dual processor system. I am doing work that requires more than 4GB of address space and would benefit from good threading performance. As far as I can see, this means Solaris on Opteron (much as I like SPARC, it doesn't cut it in terms of price / performance for machines under about 8 CPUs these days). Oh, and I need good floating point performance, which rules out Niagara.

Can anyone recommend a good supplier for Opteron machines at a reasonable price? I need a minimum of two CPUs (or cores), a reasonably sized (but not necessarily fast) hard disk, a couple of GB of RAM. It's going to run headless, so no graphics card is required (the Sun workstation line looks nice, but I object to spending money on an nVidia Quadro card that is never going to be used).