my thoughts: ditch the wireless idea.....you could do 54mbs with wireless but fuck that with large content files your dick will hurt (figure of speech)
take those 2 3com hubs sell them on ebay buy your self a nice little 24 port (expandibility) switch and mount it in a rack in a closet.
Take baddogs idea and go get your self a 12-24 port patch panel...Leviton makes really nice ones...
then a box of of cat 5 some surface mount 1 gang boxes and some leviton cat 5 jacks then start running cable. Depending on if its a drop ceiling or not get your self some 1 1/2 inch self adhesive track to run that cable in so it looks all pretty. you can probally pick that up at home depot.
Run all your cables back to that patch panel and start punching down. then get your self some little patch cables to run down into your switch.
run a patch cable out of your routers local net port down into your switch turn on dhcp and...
got your self a nice little 100mb lan
nice thing about that set up...all you need to do is just run a cable to another desk that you might need to put in place...run some molding crimp some ends and you got another station.
IF you didnt want to run all that cable you could just run one to a desk and put a little like 8port switch in place then plug patch cables into that from your computers. That might save ya some time.
I would place one of those wireless ap's on the network....turn off dhcp on it just in case you want to bring in a laptop to the office for some free dom.
i dont even know what i just tyrped...damn...i hope that makes sense