im not looking to throw a party with these shits, i care more about clarity and clear mids and highs than i do anything else, im kinda leaning towards the behringer ms40's because they have optical so i dont have to worry about the sound breaking up with higher volume, but im worried the subs wont pack a real punch, and then i'll end up having to get a reciever and a sub somehwere down the line, the swans might be enuff since its just for my room, but the size of the cones in the sub (which isnt even a sub, its being advertised as a mid woofer) might not be enuff to really appreciate the bass in dubstep and hip hop
anybody try either of these in their short 15 years alive on this world??? help would be appreciated 
you don't even know what you're talking about. toslink just provides a cleaner signal plain and simple. and if you have sensitive equipment it protects it too.
you want bass with clear highs and mids? settle for a pair of good monitors and buy a sub down the line.
for that don't get the behringers. they literally just make knock off monitors. cheap components. for 2.1 sound its better of to settle for analog anyway if connection is your concern.
swans? i've actually auditioned those for a week, heard about them from head-fi. they were great, good balance of mids and highs and lows weren't as boomy, it was tight and quick, but when it came to dubstep and hiphop, the bass was lacking to my ears, they didnt have that punch. good for the price though, you get more than what you pay for with the swans.
if you really need a system asap, jump on the swans, but if you could wait/save up a bit get a pair of A5s and then the sub later on. trust me, the A5s are worth every single penny. Best pair of speakers I've listened to with the sub. but had to leave em at the showroom, 700+ for the entire setup.
and thats the cheapest high quality monitor + sub set up you can get. Quality monitors are sold by the Speaker and cost 150-200+ a piece.