I've been attending a PCA church lately, actually. But I doubt I'll turn Calvinist any time soon. Deo volento. >.>
Wonderful news. I haven't heard any of our PCA brothers and sisters complaining.
My only complaint is that there isn't one closer to our house. I envy you and hope you find it to be a good match.
And as far as calling yourself a Calvinist, it takes some time to shake the perception of stodginess and antiquity off the label. But once it's gone, you feel liberated. It's just so joyful and solid. God's in His heaven and we have been redeemed by grace alone through faith alone in His perfect Son alone. The best is yet to be.
In most PCA churches, you only have to be able to subscribe to the Confession of Faith if you serve as an ordained officer. (Some extend that to other leadership positions and to adult Sunday School teachers).
I would recommend that you read through the Westminster Confession of Faith and its scripture proofs. (Do a keyword search to see the series posted by Alex Murphy). That’s the OPC version, but it is substantially similar to the PCA version.
And, remember, Calvin himself would probably have had to have taken some exceptions to the WCF.