In my opinion, I wouldn't get a secured card. My credit was almost more than shot at this time two years ago - I had about 5 or 6 outstanding accounts with most being sent for collection, even had to pay a $300 security deposit to PSE&G to get service for my apartment last year. I don't even know what my score was, but I'm sure it was pretty low.
Last year, I began paying off most of the accounts that had negatives on them, and didn't even think of a credit card of any type(I only have a debit card). Fortunately for me, all the accounts I was paying off was reporting to the CRAs - even the ones with the CAs. Last month, I brought my report down to 1 negative, and checked my score...Surprised to say, it was in the mid-600s.
One thing I'm trying to do is see if I can get PSE&G and Comcast to report my account status on my reports, since I haven't missed a payment since I opened my accounts 16 months ago. If you have bills like these, maybe you can ask them to report it as well, if they don't already. This way you can build your credit by continuing to do what you do now, and not have to worry about another credit card - I'm still not looking into credit cards.