Yep. No one will have the EXACT band sequence as you. As in, there will not be two "IF 09 TRC 123" bands, just one.
As far as different breeds having certain bands, yes and no. They go by sizes, based on how big that breed is. So if you want bands for breeds other than homers (IF and AU), then you need to get NPA bands (National Pigeon Association). On the band after 'NPA' will be a size number, such as 8, 7, 10, etc. On their site they have lists of what breeds fit under which band size. So for rollers, you would need size 7, for homers size 8, and for frills and most other small feather-legged birds, size 10. For an example of what an NPA band would read, here's one of mine:
"NPA 10 08 FR 510"
08 being the year, 10 the size, FR the 'club', and 510 the serial number.
If you want seamless bands, which are required to show and race (and they're also the only traceable bands), then you'll have to put them on the squabs when they're 5-8 days old. For older birds, you can put snap-on or spiral bands, which are easily removeable. You can order the spirals in different colors and the snap-ons with numbers/colors of your choice as well.
They also make custom stickers that can be put on snap on bands. So if you want your older non-banded birds to have address bands in case they get lost, then those stickers will do the trick.