You can have match on both machines. Firstly, add match to your main computer and allow process to complete. Once this is done, repeat process on second machine. Note that you must use the same apple I'd on both.
The result will be that you will have the main computers music shown on your other computer as being in the cloud and vice versa. You can stream this music but if you want to consolidate all your music on your main computer (on both if you wish), you can download this music.