Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Editing › I need Help looking for a Computer to run Vegas Pro 8 › The basic chassis looks go
The basic chassis looks good, but I would look for a 7200RPM drive.
I would also purchase aftermarket memory, as HP laptop memory is notoriously slow.
The main advantage of x64 bits is to add memory, so I do not know how much advantage x64 will give you over x32, but it should give some.
Also consider adding 4GB ReadyBoost RAM (a fast flash card).
And I do not know your budget, but Dell makes workstations that handle more than 4GB of RAM, which is where the real advantage of x64 is found.
I hope that helps.