We sourced our own wine, worked out brilliantly.
We didn't have the reception at a Hotel - Which suited us far better.
Instead of going to France, we went to Naas to a shop called ''The Wine Buff'' (didn't know whether to name them but they done a great job!!). We had a tasting session, bought a few bottles to try as well. The wines are all from small vineyards so they weren't available anywhere else (created a nice exclusive feel at the reception) We also got a list with characteristics of each wine they had in stock - This helped our cause as we are no experts haha...
But we ordered a fair bit with them and was delivered on schedule...
There was a tick in each box with their service and i'd recommend them to anybody looking to select their own wine for their wedding (or if u just want some nice wine!!!

Good luck