If I understand you right xplozia, then you can do this with pfSense - see here http://doc.pfsense.org/index.php/Multi-Wan/Load-Balancing for load balancing, with this set up you can also make particular traffic (to an internet server, or from a local server) favour a particular connection.
Note that to get this you need the 1.0.1 iso disc, and then update to mid jan or later snapshot - I'm currently running on 9th Feb snapshot which works mostly OK for me.