RE: Peepless sights
compound, if you search the "TECHNICAL" section for "no-peep", you will get some info on the NO-PEEP (which I own and love), YIKES and HINDSIGHT, which are all peepless sighting devices.
As far as the better fiber optic sights, I just changed to a Trophy Ridge Nitro Extreme (which comes with glow sticks), and am very pleased with these sights. Lots of natural light gathering capabilities, and with the glow sticks, possible to see the sights in TOTAL darkness! I do know there are others out there with the same qualities.
BUT, these are my own personal opinions, please check out what would be best for YOU.