@Minh Le  I know of a lender that only uses a desk top valuation. 

ANSWER- I use a program called Loan Expert Plus on my desktop, and PowerOne on my blackberry.

Since no android app, I can't wait for the desktop version this week...

Do you go with the desktop version?

I would like to explore bartering new, Major Brand current model Computer Lines (Laptops, Desktops, PDA's, & software) as well as complete lines of Consumer Electronics (Flat Screens, TiVo, MP3 +++) in exchange for a single family residence in the $250-$500K price range.

We throw these into a spreadsheet and take an average to create our own "desktop" estimate. 

I owned an IT support firm many years ago with a focus on networking and desktop support, then ultimately went high-end with larger campus networks and security (Fortune 5000).Glad to hear that you want to get started in real estate investing.

Then you can read it on any of your devices or your desktop browser.

Here's my quick desktop analysis (it is a guestimate):170k Purchase Price * 20% (Down Payment) = 34k + ~4k (3% for estimated closing costs & prepaids)=~$38k total acquisition cost.That leaves 136k (principal balance) @ 5.5% for 30 years with a payment of 772 Principal & Interest, plus ~300 (?)

Actually waiting to hear back from the appraiser - the bank first had a desktop appraisal done, which came back at an insane $677k (we bought the house from the bank for $280k) and they then had a walk through ordered, which came back at an almost equally absurd $330 (there are houses all around us that are half the size that sold for that much).