If you happen to be a USAA member, I give them two thumbs up.
I started a Roth IRA at about 25 or 26 through the brother-in-law of a friend. It was at "SunAmerica" (I didn't know what was what from Adam). For eight or nine years, it stayed there. Every time I wanted to make a change, the person i'd dealt with last was gone, and I had to go through all sorts of contortions to get anything done. It was actually hard to contribute to the IRA because of this. In 2005, I had about $5K I was at a job with a really good salary, and I decided to get serious. Somehow, I found out that USAA has an investment branch, and I was off. I bought into their S&P 500 index fund and used direct-deposit to automate my contributions. My balance really started to move forward
USAA has been very helpful whenever I have questions.
If you aren't a USAA member, try to get recommendations here, from friends, coworkers, etc. for a place that will help make things easier for you. This SunAmerica I was with, I think that A) they churned through agents, and B) nobody wanted to be stuck dealing with a piddly $5K IRA. You want someone who is going to help you make investing as easy as possible.
And remember... a downturn in the market, for someone around our ages, is a buying opportunity! Keep making those contributions! If the market isn't doing better in ten years, we're all in a steaming cauldron anyway.