Capital gains rules for 2012 are the same as 2011. But in 2013, capital gains tax rate is likely to rise, from 15 to 20%. Also, there will be a 3.8% Medicare tax on investment income.
It might make sense to sell a winning long-term stock (if you're so blessed as to have one) before 2013, and immediately buy it back.
Wash sale rules apply to losses, not to gains.