I’d get a basic laptop with at least one of each type of port (usb, firewire if possible, flash card interface, etc). you should be able to hook up to any projector or data device.
I also like macs but they’re expensive and create a sort of product dependency; however, they don’t need constant babysitting like pc’s do. Leave a mac sitting for a year and you can pic up where you left off. Leave a PC sitting for a year and you’ve got every virus, adware, and malware on it and it needs to basically be reformatted and everything re-installed.
