I notice in the thread of "picutres of your trading computers" that quite a few setups encompass using a laptop for order entry along a desktop for viewing charts. I'm curious what the thought is behind doing this? Faster execution since you have a dedicated CPU for order entry? Easier to enter orders?
Many ETers want to keep up with the market when they are away from their regular trading place. That likely means a notebook computer. There's nothing special about having a notebook in addition to your desktop... just that if you have one, might as well make use of it. Not a bad idea to have 2 computers for trading though... share the load, something in the way of backup... easy to do through a router.