Just set up a simple receiver & speakers w/ iPod dock accessory. You could save even more $ by going with a HTIB system. The sound quality will be vastly superior, even with an arguably 'budget' receiver/speakers. You gain the additional advantage of being able to move around/adjust the location of the speakers too. Surround sound would also be an option if you wanted to do other media on the same system.
Energy Take Classic vs Monoprice clone
Most reputable entry level AV receiver manufacturer's rigs would suffice. Check out ecost.com & amazon for such deals, along with fatwallet.com/slickdeals.net. The Energy Take Classic 5.1 speakers now have a very good generic equivalent for less $ (see above monoprice.com & CNET for reviews of this one).
i'm not so good in english but i will try to explain what i would like help with. i'm planning to buy a speakerdock wich has a sound that is big enough to fill up my room ( 20 square meter ).
my first choice would be the beatbox, altough i am not sure if i should buy the regular or the portable version. also i was looking at the b&w zeppelin. but since i listen mostly to house, deep house, tech and dubstep i thought this wouldn't be the best choice.
my budget is +/- 700 dollars.
could you please give me advise on buying a speakerdock and give me examples?