cluster or workststion

Peter

Hi everybody, I have about 10,000 euro to buy some machine to calculations and I am considering to options: cluster or workststion. Let assume that workstsion has two CPUs and cluster is two units with the same single CPU and rest of equipment is also the same. Generally I need this to calculating not to big cases (say 2,000,000 nodes) so the main purpose is to gain the shortest time of calculations. I got to know that, more or less, comparable performance from cluster (on PC components) I can obtain for half of this price. Does anybody have some experience in this matter? Regards