Here's what I do with my 8900: for 2-440-6m I'm running a Maldol ex510b-nmo triband antenna. For 10m I'm using a Larsen NMO-27 cut for the FM portion of the band (take care trimming, a little goes a long way and replacement whips are a pain to find..ask me how I know!). The antennas are fed through a comet CF-360 http://www.hamradio.com/detail.cfm?pid=H0-001439
I also have a larsen nmo 150 5/8ths wave that tunes up great on 2m and 6m that I play with every once in a while. Everything fits in the garage, looks and performs fine.
I have considered adding a 2m-440 diplexer connected to the cf-360 to allow me to run a separate 440 antenna (same idea as K3GM) and using the Larsen 150 full time on 2m and 6m, but haven't done it yet, I've been happy with the Maldol after I figured out an initial SWR issue (bad SWR meter grrr). if the Maldol dies I'll probably try it.
Current setup: https://plus.google.com/u/0/photos/108388273845581073968/albums/5693931148402558865
Previous setup before car was totaled: https://plus.google.com/u/0/photos/108388273845581073968/albums/5407021333513623297
hope this helps!
Considering using two antennas with a Yaesu FT-8900r. One for 6 and 10 meter FM and a second for 2 meter and 440 FM.
If anyone has tried this and has any feedback I'd like to hear it.
Currently using the Diamond CR-8900 Quad Band. It's about 5 years old and very badly beat up (pretty near shot, actually). Hoping to lessen the compromise necessary by using two antennas.
What's the current wisdom?