30 qt should work great, you will have enough room to do a 5 gallon batch. As for the bottling, you may want to grab a case or 2 of bottles from your LHBS. You can get them, caps, and a capper for fairly cheap. Based on the volume of your kettle, will need quite a few bottles. An even cheaper avenue would be to recycle some of the beer bottles you drink personally and save them for bottling, that way you only need to clean them up, cap them, and let them condition. Should save you $30 in the long run. Just be sure to sanitize the heck out of dem bugga's!