Reasonable shipping method for personal computer?

I would like to start selling, trading, and donating some of my collection to get it out of the house and into the hands of people who could use them; they range from small classic macs to amigas to 5150s to large pentium-era towers. However, I've been hamstrung by my choices of shipping things that are larger than a book. Choices for shipping in the USA are the USPS, UPS, and FEDEX. The questions begin: - Which one is best for PC-size boxes? - Which one is best for PC-weight boxes? - Which is the most convenient? - Some services pick up from your residential location rather than you having to lug a heavy box to a counter somewhere; does anyone use pickup? If so, which one? Any advice and best practices are appreciated. I am even willing to donate some of this stuff not if it's going to cost $75 a box... -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Help our electronic games project: http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/ A child borne of the home computer wars: http://trixter.wordpress.com/