Well the easiest way may be this option from Radio Shack.
http://www.radioshack.com/product.as...5Fid=15%2D2572
It will send audio and act as a remote extender.
You could also run audio cables to the second reciever and an Remote or a remote extender. This option will probably require an a/v distibution amp which can also be had from radio shack.
http://www.radioshack.com/product.as...5Fid=15%2D2572
This option would probably get you better quality but be a bit more of a headache.
This stuff can also be had from parts express etc...
It sounds like your long term plans include a media reciever of some type and you're just looking for something to get you over the hump. If it were me I would probably go wireless because it's relatively cheap and easy.
Keeping an eye on the future I would also start ripping all my favorite CDs to MP3 and run network cable while I remodeled.
Just my two cents