music and movies.... from what type of input device?
ps3, pc, dvd player, ipod? multiple input devices?
for pc use i agree that logitech makes some speakers which have a good $/quality ratio but they are not ideal for any sort of home theatre in the least.
what type of speakers are you looking for? satelite, bookshelf or floorstanding speakers?
for $150-250 you are not likely to get any sort of quality speakers. for about $500+/- you have more options such as
this, or energy take 5.1 linked in the review. you would still need a receiver or amplifier to power them which would bring you up to around the budget i listed above.
if you want to keep closer to your budget of $150-250 i would suggest a 2.0 setup with
these speakers and an amplifier or receiver. we have a set similar to this out in the living room and while not the best sound i've ever heard are very impressive for the cost. no need for a subwoofer either as they produce more than enough low bass. you can always upgrade later on if you want.
dont have the cash to throw around? i would suggest checking out your local flea markets. i've seen plenty of sound systems for sale though most of them are the typical several year old crappy htib sets. i did see the exact speakers i used up at a sale once (klipsch quintet iv's valued at $500) but they were beat up and i really didnt need them (i just bought my speakers that same month). you can definitely find some buys at times.