BB,
The first thing you should do is sell the $106,000 invested in Vanguard TIPS fund in a taxable account. TIPS are best owned in a tax-deferred account because they produce "phantom income"--- income that you don't receive but is taxable due to the cost of living increase in principal. Instead, the cash proceeds in that account should be invested in a tax efficient fund or portfolio of funds--- with an emphasis on equities.
Yes, I know, equities make you nervous. So I have two suggestions. First, get yourself a copy of Zvi Bodie's "Worryfree Investing." Bodie, a professor at Boston University, believes that we should plan our retirements at the lowest possibler risk level. To him, that means investing largely in TIPS and planning for them to mature when we need the actual cash. I mention this because you're already started.
Second, your most flexible account is your $273,000 401(k) rollover account. That's where your TIPS investment should go. Should it be exactly $106,000? Probably not. What it should be is a ladder of TIPS that starts to mature in the year you intend to retire and may need money from your investments as well as your other retirement sources.
What you need is an annual schedule of expected cash needs. Then invest that amount in a TIP that will mature in that year. Basically, you'll be prefunding your cash needs, year by year. The longer you do that, the greater the odds that your equity investments will produce the higher returns equities have historically produced. With $500,000 in financial assets, I'll be that a $250,000 ladder of TIPS in that rollover account would provide you with income security for a long time. Meanwhile, the taxable and other accounts could be invested in equities. That would give you a 50/50 mix and a very long time before you had to draw on your equity investments. Pretty conservative, because you'd only have to worry about equity prices 10 or 15 years from now, not next week.
I believe you can start to pre-order "Spend Til' the End" on Amazon. It is scheduled to be in the stores in early June.
Scott