But players can also sign deals that are 105% of their previous salary even if it exceeds the cap.

FORBES: Kobe And LeBron Top List Of The NBA's Highest-Paid Players

It is considered high if it exceeds 160.

CNN: May reduce heart's workload

For richer entrepreneurs who can finance themselves, on the other hand, an investment is worth doing if it exceeds the opportunity cost of capital, ie, the rate they can earn by putting their money in the bank.

ECONOMIST: The World Bank cannot go where its research is leading it

While generosity with family members often occurs under the radar, the law is clear: if the gift exceeds a certain value and the Internal Revenue Service catches it, you could be forced to pay the tax as well as interest, and, in some cases, penalties.

FORBES: 5 Ways To Help Family Pay For Housing

If Sony takes another year or two to develop technology that exceeds their competitors by a significant margin, it might have been worth the wait.

FORBES: Next Xbox Will Likely Launch in 2013

If you meet these criteria, consider becoming a homeowner again when the monthly cost of renting exceeds what it would cost to pay a mortgage's PITI (principal, interest, taxes and insurance).

WSJ: When to Buy After a Foreclosure��WSJ House Talk