my 7.1 pc set up advice and help please

im setting up a 7.1 system on my pc but will be used as my front room sorround and tv system

50 inch lg

teufal 400 concept 5.1 speaker system 500 watt

razer mako thx 2.1 system

slx gold b n q special lol wire 79 strand ofc copper

qed 4x j2p 3.5 mm to rca

i wanted to know as the razer speaker fir 360 degree sound down wards if i should use them as the very rear or the side speakers and turn the base all the way down on them

any help or advice with my set up and how to do it would be great my room is prity much square and sofa is in the middle

http://www.macworld.com/article/1143231/razermako.html

http://www.teufelaudio.co.uk/pc/concept-e-400-p251.html

and power dvd 12 ultra