Ric I ended up cutting my remote cable and soldering a plug and jack at either end with a shielded cable approx 5 metres long.
The beauty is that I can swap the end so I can use it on either the 20Da or the 300D and also I can plug it into the lappy for use with DSLRFocus etc.
I'll see if I can dig up some info and pics.
BTW congrats on your new DSLR.