there's a nice savings calculator at bankrate.com that will help you determine what would make the most sense to you.
http://www.bankrate.com/calculators/savings/simple-savings-calculator.aspx
however, i would think that an account paying .75 or .90 APY that takes all of 15 minutes to open, would probably be a better option than an existing account paying .01 or even .20. it's only a few dollars but i'll take anything more than i already have any day for 15 minutes worth of work.
simple scenario: static $1,000. (no additional savings added to it) interest rate .01% APY. at the end of 1 year you will have earned $1 interest for a total of $1001.
same scenario: static $1000 but the interest rate is .90 APY. at the end of 1 year you have $1009.
You earned 8 more dollars for 15 minutes of time. Maybe a few more minutes if you do some research about which bank you want to use.
Online banking options pay higher interest, you can find some with no minimum balance or small minimums. That bankrate.com website also gives a listing of banks with their savings interest rates.
Doing quick search of 6 and 9 month CD rates, they're the same as some of the online bank savings accounts so there's no reason to go that route for a short term note. Stick with the flexibility of a savings account, but find one that pays better interest. You won't be getting rich off it, but I'll take the extra bucks.
Plus, you can always use that account for saving money after buying the house. You will need to have a savings plan for the house maintenance - if you save a little each year it won't hurt when the big stuff breaks (appliances, furnace, water heater, roof, siding, windows, etc) Big stuff will break; if you're lucky they'll give you some time in between each replacement to replenish the account
But you never stop saving, there is always something else you'll need to spend money on (car maintenance or replacement, house maintenance and improvement, vacation, etc). So don't think of it like you're only putting that money in it for 7-10 months, you should be using that account for the long term too.
Online accounts are usually linked to an existing checking account for money transfers in and out. You just need to allow 2-3 business days to get access to the money - unless you get one that gives ATM cards. As long as the bank you select is FDIC insured, its no more of a risk than a brick-and-mortar bank. Also check with the typical credit card issuers, Discover and American Express both have online Savings accounts and CD options now that pay in the .8 - .9 range. Just look for one that has no fees, you'll be earning interest just to pay the fees, defeats the purpose.
Good luck, homeowners need all they can get
