I've not owned any PC's by Dell, but I have had an HP one & the ones at work are HP/Compaq.
Dunno about the ones Insight are offering, but all the HP machines I've seen have included proprietary motherboards, making them hard to maintain out of warranty & offering reduced expansion options.
imo the AMD/Intel is not really an issue, performance wise, although it's worth pointing out that the AMD chips don't have the thermal throttling protection that the p4's have.
It's your money, KP, but my 'gut feel' says stick with Dell
