Yeah, it's ok of course.
Well, loops are often just long samples [;)]
The bass sound I used on this cue is from Will Lee (AKAI library converted to Giga). It is a simple basic Fender Precision sound, if I remember well (3 years ago). I recently also bought Scarbee's basses, which are considered by most people as the ultimate, super-realistic bass libraries. But I haven't used them yet, as I experiment mostly with orchestral music now.
A lot of percussion and drum libraries contain both single hits AND loops. So with libraries like Liquid Grooves, Burning Grooves and Back Beat (all from Spectrasonics), you can build a basic rhythm pattern using loops and add additional hits on cymbals, toms, etc. If you set the sequencer's tempo to the same tempo as the loop, you just have to hit one note per measure, for example.
Other loop libraries are more flexible, because they offer handy tricks to manipulate the tempo (like Groove Control, also a Spectrasonics trick).
Loop libraries can be real life and time savers, but if you don't like them (maybe too predictable or too "polished"), don't use them. I think building convincing drum and percussion parts from scratch, by programming all notes yourself can be A LOT of work!
Don't forget that also a lot of loop libraries have very nice processed sounds (for instance from band-width filters, resonance, etc) which can also be quite some work to create yourself.
