@Max James - I disagree about cash flow. Perhaps you won't touch the golden 2%, but our rents are so high that you can support a decent cash flow over mortgage, if you get a good price, even in the Denver metro.
@Chelsey Hamill - be aware that while Co Springs purchase price IS cheaper, so is the rent. That's definitely something to take into consideration when looking at this area. Also - be aware that you probably want to avoid the Pueblo area (sorry - not meant to offend), as this whole area is considered low income and renting there can be challenging, from what I've heard. I would highly suggest the Westminster/Arvada/Broomfield area for a newbie. This is not technically very close to Denver, but it is more affordable and much easier to get into than the city proper.
I would avoid Aurora, Sheridan (city, not street), Commerce City, and Denver proper until you are more familiar with the city and metro area. If at all possible, visit the area that you're looking to purchase in, during the day and during the night, on Monday night (yes, for some reason Monday night can be hoppin' in the bad 'hoods) and on the weekends. You will quickly find out where you want to be, and where you might not want to be.
There are good finds, you just have to work harder to find them! Duplexes, though, are very rare. If I were starting out here, I would find a nice condo with a very low HOA payment, and that doesn't preclude renters, and move in while I'm getting situated. Then I would look for a duplex.