If your projected savings are low compared to how high your additional repayments are, you may want to consider other options than paying of your loan. Here is a brief list of alternatives:
Stocks, Shares and Bonds
If you don't mind taking on a bit of risk, you can make great savings by investing in stocks, shares and bonds.
Shop around at banks for the best savings accounts. Here are some useful pages you can use to identify the best savings accounts: