Quote from Scataphagos:
Well, good for you.
I'm a big Dell fan for their Precision line of workstation/business computers (I have 6 of them in my home network). If you're not pissed at Dell over all of this, suggest you consider a Dell Precision T3500 for a trading machine. You won't find better quality and support for one properly priced from Dell Outlet. (Dell has a separate support channel for business line computers.. different from "consumer" computers... XPS is a consumer computer.)
I have 3 other Dell machines. They had excellent support when they first started & just like you, I referred many people to them but lately they have changed mainly because of local people they have working from them. Those people know very little about business ethics & are giving bad rep to Dell as a whole. At one point Dell had to move their support back to US & I wish that still was the case.