I would... That day was 5 years ago very close to the day... My Wife (Now X-Wife) came home for holiday break in her training for the Army. She had been gone for about 2 months and every day sucked more than the last. Being seperated for that was by far the worst thing I had ever been through, including the divorce further down the road.
What made that day special was that unlike other days, her actions matched her words. She undoubtedly, most certainly wanted nothing more than to just be with me. She wanted to be near me, hold me, just be close... no agenda, no tasks, no distractions -- Just the 2 of us!
To trade would be worth it, after all... what's a week compared to eternity? But even if we only had 100 years in the "afterlife" I'd still trade that one day...
EDIT: After re-reading the orig post... I have to add something here. This is to trade a week of the life I live now, No way would I trade a day for a week... that's living in the past and saying that what I lived in the past is better than I'll have in the future. I would not trade a week of possibly being with the greatest love of my live for a day with an old-flame. --- Now to trade one week of eternity for 1 day, sure... that'd be like Bill Gates paying $10 for a happy meal - Sure the price is higher, but he'll never miss it!