Wow congrats on the Venture approval and huge SL. Did you have any other pre approvals showing with Cap1 like the Venture One or another Quicksilver showing? If so apply for another as you can app two cards with Cap1 on the same pulls. If you got 15K on the Venture I bet you'd get 7.5 on the Venture One or 5K on another QS. Also sign up for NFCU online. You can sign up and be approved for membership in about ten minutes. App for either their Flagship Rewards or Cash Rewards card and I bet you you'll see a 15K approval on that as well. Also apply for the checking LOC and you'll get that too. Then sit back and take good care of your new accounts for a while and they will grow nicely and even more doors will open for you.
