imac connect wirelessly to tv to act as media centre

Hi All

living in uk and want to know if there is a way I can connect my imac to my pc wirelessly, whether that be through the network or other method

I do no want to use apple tv. is there any other soluction. this seems to be a very easy option if i had a pc. I just have a wireless keyboard and want to be able to use my mac in the main room of my house

thanks

I have found a DLINK 330 that would act as a media centre, however, I am unsure as to whether it will connect with a mac, any ideas?