During these economic down turns, those who really understand how the stock market works will normally start to buy in at this point. Perhaps waiting a couple more weeks would be sensible, thought a lot of stocks are much cheaper than they were just one month ago.
I have to put out a warning though. There's a difference between cashing in on the general public fear that the world is falling apart using your own cash versus taking out a loan to invest (unless you are taking out a loan to invest the sum in a Term Deposit/CD account which is guaranteed at a fixed rate normally... and if the rate is higher than your interest rate on the loan, then it is actually quite brilliant). I'm sure you can decipher for yourself, which one falls into either category.
Taking a loan out to invest could destroy your credit and life. If you have found an amazing deal or something that made you believe that this is your time to walk away from the bunker and jump into the war (even though your strapped for cash... but are absolutely positive that this is your calling), then I suggest you stay put for now untill you can save up a few more dollars. Stocks will rise, but they will drop again. You will have your chance... things happen for a reason. Don't make the mistake that millions of Americans have made, and that is taking a loan out to buy a home in hopes that their life and their salary would be the same for the 30 years that they signed on for their mortgage. Except for you, it would mean that your taking out a loan, and perhaps the stock drops and now you owe heaps of money to the bank, and are paying for something that you no longer have. This happens, I've seen it happen and it's not pretty.