I would like to invest about $500 to $1000 every month for the long haul!

I would like to know if anyone has any recommendations or ideas. I am looking for some sort of aggressive but very diversified strategy. (Diversification is very important to me)!

I am open to any investment vehicles domestic and foreign such as stocks, mutual funds, bond funds, ETFs etc. as long as it is diversified and as long as I don't have to baby sit this account and shift stuff around.

The account will be a taxable NON-IRA account and am looking for 10%-15%+ annual return for the long term (over 10 to 15 years+)!

I would appreciate any ideas and recommendations that fits the criteria.

Bluedog