Hey James,
If you're looking to just pack, my opinion is the Good Vibes Sailor Soft pack. When I first started packing that is what I would wear. They're affordable, comfortable, feel great and look pretty close to a real penis. If you're looking for a Stand to Pee device, check out the Stand to Urimate Whiz Packer. Not only are you able to pack but you can pee too! It's awesome. They come with a free packer holder. There are many different strap options out there. There are cock socks and the company I mentioned have a very simple but yet very affordable strap. I found that if you wear tighty whiteys, you really don't need a strap. A packer stays in place rather well.