2000 ST Luggage

So I am trying to decide which luggage to get for my 2000 Sprint ST. My choices seem to be either the Triumph set or Givi using the SW-Motech adaptors from twisted throttle. I am doing a 4000 mile trip this summer (my first touring ride) and need enough space to stash everything plus would like to be able to stuff a helmet and such in a top case when riding around NYC. Any suggestions or anything I missed? Also, how difficult is it to install luggage on these bikes? Thanks.

-Fitch

[Nelson955]

The Givi panniers would be cheaper than the Triumph ones if buying new and when you sell the bike, you will be able to retain the Givi boxes and use them on the next bike. The Triumph boxes will only be of use if you replace your current Sprint with another one. Top box wise, if you go for a E52 Givi, there is enough space in there for 2 helmets.