I am the proud owner of 2 M1A's, and I will certainly own more before I am done. But probably not a SOCOM.
I did get to handle one, and I did not at all like the feel and balance. Way too much forward weight, and it handled like crap. If you get the chance, pick one up, but do not order one unless you do handle one first. There are lighter mounts avalible if you want all the dodads. Fulton Armory and UltiMak are two examples.
Now a scout is fine for a shorter barrelled .308, and you really don't loose that much in "reach out and touch someone" ability. The single rail can be suplemented by Fulton's forward sling swivel/mount rail, so you can have 2 dodads mounted (scout scope/light or red dot/light).
Now, after all of that, I would recommend the fullsized standard M1A. Pick one up sometime and you will have one heck of a time put her down. The standard shoots very well out of the box, mine is right at 1 MOA. I believe that the average M1A is very accurate out of the box, and I would have no qualms about buying another.
Get your mags from .44mag.com, the cmi ones, as stated above. Also be sure to check out the Revolutionary War Veterans Association at
www.rwva.org, and the forum at
www.rwva.org/yabbse/index.php, or click the forums link on the home page. You will find many nice folks there (like funfaler) who shoot the M1A a whole lot.
If you're real lucky, there might even be an Appleseed near enough by that you can make the trip to show off that new M1A you got. Or to try one out before you buy.
Oh yeah, just because I don't like the SOCOM don't mean a thing if YOU do. I just recommend you at least hold one before you spend all that dough.