If you have never done any type of investing before then I would say no. At least not with the very close help of experienced investors. However, it is very rough to answer that question. Right now everything is down and it keeps going down and wont go back up until there is a major shift (election may possibly help). If you know a company is a solid company but is down then I would watch it closely. Lets take Apple for example, they were trading at what 120+ the other day and went all the way down to 85ish yesterday. However, they are up today and we all know they are a strong company with new products that consumers love. X-mas is right around the corner too, even though consumers are not spending the money they once were you better believe they will be plenty out there getting ipods for little Jimmy.
Trick is to watch it like a hawk in today's market. Of course Bonds, mutual funds are different then what I am talking about above, they are still based on market drop/growth/etc...