I have a friend who is a Sun Hardware Salesperson for his sins. I spoke to him a few minutes ago and asked him what iit would cost for a Sun machine that could handle up to 12GB ram. The answer:
E280R Server twin 900Mhz UltraSPARL III processors, 2x73GB fc-al drives, DVD-ROM. - £17,670 with 4GB standard memory (max.8 GB). Just under £5,000 to expand this to 12 GB. Only possible using non-approved DataRam 2GB DIMMS. (Around $35,000)
V480R as above expandable to 4 CPU's and 16GB - £18,507 + £5,000 for the extra ram. (Approx. $37000)
Cor! Like yer ring! ... HALO dammit! ... 'Ave it yer way! Hal-lo, Mister la-de-da. ... Like yer ring!