Nose piercings are pretty good in my opinion. Like you said, they're small and not too noticeable unless you wear a nose ring.
The healing time for one isn't extremely long ( I think about 3 weeks before you can change it out. I don't quite remember. ) You do have to be careful with it because...
Piercings I have:
Lip
Nose
Second piercing on my lobe. ( they're above my gauges.)
When I was younger I wanted a buttload of piercings. I wanted my Septum, another lip piercing and an eyebrow piercing, several cartilage piercings. However, I've quickly changed my mind on that. I like having...