This is the unit I used: http://www.amazon.com/EZgrabber2-Cap...m_cr_pr_sims_i

Honesty I don't think it matters which one you buy. I think all of these usb capture devices are the same unit with different shells.

Using a digital 8mm would work, but it's going to be an much more expensive option if you have to buy one. And quality is a relative term here. If I remember right, the best 8mm format could muster 480 lines of resolution. If you recorded with the 'extended play' formats, that quickly fell to 200 or so lines. Spending a lot of dollars to get best quality may not be worth it. Just get your memories off a slowly decaying tape =)