If you're looking for sampled instrument libraries like those that come included with Garageband, then you'll have to go 3rd party. DP is a pro workstation; it's not a beginners' all-inclusive package. MOTU assumes that anyone buying something as sophisticated as DP will want have particular tastes as to the kinds of instruments they prefer to use. No DAW's bundled instruments are of the quality level of even the cheapest orchestral library such as
Garritan's Personal Orchestra ($149) or
MOTU Symphonic Instrument ($280).
The range goes all the way up to Vienna Symphonic Library, which is apparently limitless in cost, depending on how much of it you want to own. To own a good chunk of it would take at least $25,000.
You're looking for typical band instruments, and there are so many of those I wouldn't even know where to start pointing you. Get on google, Amazon, or Sweetwater.com (the links above take you to Sweetwater), and just start checking out the possibilities. People in this forum will direct you to some of the best for the investment, but you'll see a wide range of preferences. In most cases, the quality of the sound, the flexibility and range of the instruments, and their "believability" will far outpace even the best that Logic has to offer, and Logic is probably the most "bundled" DAW on the planet. Apple basically uses it as a loss-leader to sell more Macs.
Meanwhile, don't be too quick to dismiss the instruments that come bundled with DP. If you explore, you'll find a LOT of great classic sounds, such as those of the old Roland Juno 120 (Polysynth), the Yamaha DX-7 and other FM synths (Proton), some great drums including a lot of ethnic instruments (Model 12), classic guitar and keyboard leads (Modulo), and all kinds of basses (Bassline). There are even a lot of sampled instruments that you can play in Nanosampler, which simplifies the sampler dramatically even if it only plays one sampled instrument per instance of the plugin. All of these instruments have very low footprints (little CPU draw) and they have several advantages:
• they are free
• they have simplified some complicated concepts
• they are powerful in the greater context of DP (you can add DP plugins to do things to them that normally would require the most powerful synths)
• they function within the DP domain and do not require learning new interfaces
• they are not difficult to "hook up" through DP's bundles. Some sample libraries actually are very tedious to get multiple outputs routed to DP's busses. With DP's bundled instruments, you don't need multiple outputs; just add another instance of the same synth, and give it a different output.
If you need examples of some sounds from these instruments, I'll post some.
Shoosh