BuyHoldGuy: Good Day All,
I am creating my asset allocation for two rollovers. Could I create a good portfolio all in ETFs, since there are no transaction fees or maintenance at the broker that I am looking at if you maintain a balance of 25K?
The only downside is the bid/ask spreads when you trade; even if you don't pay a commission, you may get only $19.95 a share when you try to sell an ETF which last traded at $20. If you don't trade too much, this is a fine strategy.
For the simple four-fund portfolio (Total Stock Market, Total Bond Market, Total International, and a money-market fund), you can get the first three in their ETF versions: VTI, BND, VEU. VEU actually tracks a different index from Total International, but it serves the same purpose. Since this is an IRA, you probably won't have your money-market fund there anyway; if you do, use the cash fund from your brokerage account.
If you want a more complex portfolio, you can also do that entirely with ETFs; almost all of the Vanguard index funds have ETFs, and there are non-Vanguard ETFs if you want an asset class that Vanguard doesn't cover.