blahgeetsa,
Check out IRS Publication 590, pp. 22-23. I hyperlinked it for you along with an excerpt below:
http://www.irs.gov/pub/irs-pdf/p590.pdf
Rollover from One IRA into Another:
You can withdraw, tax free, all or part of the assets from one traditional IRA if you reinvest them within 60 days in the same or another traditional IRA. Because this is a rollover, you cannot deduct the amount that you reinvest in an IRA.
Waiting period between rollovers:
Generally, if you make a tax-free rollover of any part of a distribution from a traditional IRA, you cannot, within a 1-year period, make a tax-free rollover of any later distribution from that same IRA.
You also cannot make a tax-free rollover of any amount distributed, within the same 1-year period, from the IRA into which you made the tax-free rollover. The 1-year period begins on the date you receive the IRA distribution, not on the date you roll it over into an IRA.
Note also that any funds not rolled back into the IRA within 60 days are subject to the 10% penalty tax if you`re below age 59½.
If any amount distributed from the IRA is not rolled over, that amount would be includible in the gross income in the year of receipt, not the year in which the 60-day period expires.
This Solo(k) method helps your cash-flow by lowering your payments and you won`t be pressured to repay it all in 60 days.