Xbox 360 & Computer tower Connected to PC monitor?

Hi there, Sometime in the sales after Christmas I wish to buy myself a new PC monitor, The Acer S271HLAbid 27" to be precise.... show more Hi there,

Sometime in the sales after Christmas I wish to buy myself a new PC monitor, The Acer S271HLAbid 27" to be precise.
http://www.amazon.co.uk/gp/product/B007A0HNUI/ref=s9_simh_gw_p147_d0_i1?pf_rd_m=A3P5ROKL5A1OLE&pf_rd_s=center-2&pf_rd_r=1Z36TQ9E17Q6W2971TCE&pf_rd_t=101&pf_rd_p=317828027&pf_rd_i=468294

I wish to connect my Xbox too it to save me money from buying a TV. I know I can do this with an Xbox 360 VGA cable but doesn't this replace the cable you'd use to connect your tower to the monitor?
How do I connect the Xbox, along with my PC tower to the monitor without having to buy several cables and also have audio? I have a Logitech Z323 Speaker System.

What cables will I be needing?

Thank you :).
2 answers 2