you can get quality, already built ARs from the top companies for ~$850 or so--up to $1000+, depending on the model and style
check here:
www.ar15.com/forums/forum.html?b=3&f=4 on easy to build AR instructions
read around
check out the Industry and EE boards for great dealers and deals on parts (bravocompanyusa, eaglefirearms.net, ADCO, and bushmaster are some of the best dealers imo)
for a basic, easy to build built AR: get a stripped lower -forged-(stag, MEGA, rra, lar, cmt, etc) for ~$89--dont pay more than $115; have it shipped to a local FFL
then get an AR kit from JTD or del-ton--5.56 chambered and chrome-LINED bbl
there are other ways, including geting lower part kits, stripped lowers, stocks, uppers etc--tools will depend on how basic the parts you are building from
mostly, a leatherman, some tape, brass hammer, pliers, punches, and AR aromory tool are all you really need
read this:
www.ammo-oracle.com for most questions on ammo
best, affordable ammo imo is federal xm-193 in bulk; win qc is also good, most quality ammo runs well in ARs--
www.ar15.com/forums/forum.html?b=3&f=16as to which (FAL vs. AR) i would rather have, it would depend on the situation and use--whats it for: H? urban? rural? truck gun? range time? plinking? precision?
the AR has cheaper ammo (wolf, .09 cents in bulk) while .308 surplus ammo is ~.16 cents or so
personally, i like the punch and range of the .308 over the 5.56--that would be the only reason why i would probably take the FAL
h/w, the AR just FEELS right in the hand; its got great sights, great handling, speed reloading friendly, and recoil is less noticible--great CQB weapon
my BUSHMASTER is still 100% in reliablitiy, except for a few FTFs due to new mags
ARs are just as reliable (in most situations ) than AKs; regular cleaning helps as well as quality ammo and USGI mags
fwiw: i have seen more AKs with ammo/mag problems and jamming at the range than ARs--but it just might be that more folks usually take better care of thier ARs than AKs
get the AR
FAL later
AK for bumpin and truck/trunk