Joe Porper clip looks nice.
I suggest having one pack for practice that you will wreck. This will be used for riffling, throwing, springing and otherwise knackering.
When you get into using your good deck for card tricks involving card distruction like ripping, signing or crimping. You will want a "feeder deck" which is a good deck you replace cards from. This is also good for duplicates and gaff making.
Some tricks require two different decks. I use red all the time (see Marvell Ubiquity theory) and blue for the above purposes only.
So, in summary ..
red bike practice
red bike performance
red bike feeder
blue bike other
A card guard is good for the performance pack.
Other than that, RRTCM is going to be all you need for ages, though you'll be tempted by other things
