While there are some fairly heavy political subplots here, it's the characters (robot as well as human) and their motives, back stories, and interactions that I find the most enjoyable. (OK, the robots in battle are pretty cool, too!) Urasawa's art-style is quite realistic compared to most manga, and I like it very much.
The first volume is here ( http://www.bookcrossing.com/---/7974949 ), and has links to the other 7. (I tried to avoid overt spoilers in the writeups, but the comments in later volumes might spoil events of previous ones, so if you prefer not to encounter any spoilers, you should probably skip the later JEs.)
All 8 books together weigh about 5 1/4 pounds, and should cost roughly $5 to mail via media mail. The books should be fairly quick reads, being manga, but as there are 8 volumes I will allow up to 2 months per hop (longer if someone's interested but knows they will take longer to read this many books). Post here if interested. (It's a really good series!)
Participants listed in the Vol. 1 JEs.