Yes, but I would think about adding at least another 1GB of RAM if your system supports it.
Aero basically just needs a 128MB video card that supports the DirectX 9.1 spec in hardware... Which should be just about every card made in the last 3-4 years.
Just keep in mind that most of what Aero provides is pretty useless. It's interesting for about the first hour, and then the novelty of it wears off. It really doesn't bring anything actually useful to the table. Not even something pretty basic like a clone of Apple's Mac OS X Expose. I'm open to the possibility that Aero is more the laying of the groundwork for a new 3D windowing system, and that future versions of Windows may expand upon it, but Vista's Aero really brings nothing of substance to the table.
i have a pentium 4 3ghz 800mhz fsb ht enabled, 2gb 400mhz ram, 80gb hdd, nvidia geforce 7200gs pci-e 256mb (suppoting 512mb), one lightscribe lg dvd burner and a dvd/cd-rw drives, and 13 usb 2.0 ports, one lcd 17" (1440x900) and a crt (1280x1024) dual monitor set-up. will my computer be able to run vista well with full areo