I hate seaming as well so I'm going to start a sweater knit in the round after the New Year using Elizabeth Zimmerman's EPS method. It's in several of her books, like
Knitting Without Tears, which you can possibly get from the library, if you don't want to buy a copy. It's pretty reasonably prices though and a great read regardless.
Also, I found this site when I was doing some pattern searching - a custom top-down raglan, you just fill in the blanks based on your measurements and knit away (that's the plan anyway, lol)
http://www.woolworks.org/patterns/raglan.html
Happy
