You have a lot of reading to do.
First, lets make one thing clear You cannot copy gd-rom (original) games using your burner.
Programs you'll definitely need are:
Nero Burning Rom and/or Padus Disc Juggler
The above mentioned programs can be used for making copies of copied games.
I suggest you read ECHELON'S Selfboot tutorial, make yourself familiar with cdrecord and/or CDRWIN.
Lets not forget bin2boot.
visit dcemulation.com for emulators and lots of dc related info.
Umm... thats about it for now
Yeah and you don't need any mod chips. Yet another reason why dc rules!!!
EDIT: sorry about posting twice