Paulo - regarding your Point #2 about "most airlines and TAs will not issue e-tickets to a traveller other than the credit card holder"...

I've been using www.Expedia.com for a while now and they actually promote this very capability. I have made reservations using my credit card and have gotten E*Tickets for other travelers (when I'm not traveling at all) on many airlines. Take a look - you will see it when you go to purchase a ticket.