Hello Misskay and welcome to the newdirt forums.
Just curious, why would you want a secured card with Capital One if you already have an unsecured card with them? A secured card is usually for people who don’t qualify for an unsecured card either because they have bad credit (like me) or don’t have enough credit history. If you already have an unsecured card and have never been late on your payments, then your credit is probably not that bad. Have you checked your credit reports and do you know what scores you have? If so, do you have any delinquencies or have applied for bankruptcy in the past? I’m thinking maybe you have a chance of getting a second unsecured card. Has Capital One given you any credit line increases?
To answer your question, I currently have two secured credit cards, one with Capital One and the other with BoA. I found that opening the second card helped my score a lot, specially because of the higher credit limit I got . If you are looking for a secured card (considering that you already have a Capital One card), I would definitely go with a different bank. Bank of America, Citibank, and Orchard are I think good options, specially because you can get your deposit back after a number of months. Capital One keeps your money until you close your account, which to me, doesn’t make sense.
Hope this helps.