My son-in-law just delivered a used 5D (mk1), EF28-105 f3.5-4.5, EF100 f2.8 macro, EF70-300 f4-5.6 IS and 580EX to sell for him. Wow, I'd forgotten just how clunky the mirror was on these and it's so easy to forget how big and heavy this FF gear is. So glad I'm shooting M43! Trying to figure out the values now. I guess they'll all be off to ebay.