That should be plenty to handle HUUUGE projects.
I have a 5-year old quad core phenom that still takes quite a beating. More than enough power for just about everything. However only one instance of FG-X and the CLA Waves plugins beat it down pretty hard.
A laptop for recording is really hard to find. Damn I wish I knew about ADK two years ago. I threw down some cash on a Dell Studio XPS. My new situation requires me to be mobile. i7, 8GB RAM, external eSATA HD, etc. I paid extra since I wanted 1920x1080, which until recently was rare on laptops. It sucks ballz!
They use stepping for the CPU which causes audio buffer problems. It is a quad core with hyperthreading and when you turn all that off the cores run at 1.73Ghz so you loose low latency performance. The IO throughput on the eSATA bus, Firweire bus, and the Express card bus (for external Firewire Card, TI Chipset) all share a POS all-in-one chip. Causing even further performance problems and audio drop outs.
Not to mention the case feels cheap and I am constantly popping parts back together. Really disappointed. At work we buy their small business lines, way better if they let you buy it. But if you want to game on it too, the graphics cards are crap.
Oh yeah and the thing is blazingly noisy. And it still can't cool itself. So I have to carry an external cooler.
So... get this.. I carry around the laptop, an external cooler, external keyboard (no number pad is teh suck!!), external mouse, external powered USB hub (only 2 ports are you .... ), external interface, external firewire card, and an external hard drive and power supply.....pretty fucking mobile.
So I am glad to hear you decided to get a desktop. Way better decision.
For those of you that are mobile (ie. home studio, commercial studio, rehearsal space), buy 3 monitors (to leave at each location) and a desktop. Cheaper and way better!
However, those ADK boxes sure look interesting....
Sorry for the rant