We plan to install a couple fiber links from 2 lower level floors that have HP Procurve 2324 switches using j4131b transceivers to a Dell Powerconnect 2724 gigabit switch in our 2nd floor server room. Would this be a mistake mixing brands? We already have the equipment, but have to buy the fiber transceivers for them. I was thinking it might be better to try and get a HP Procurve 2810-24G off E-bay to use instead of the Dell switch. Also, should I be concerned with mixing the mini-GBIC and regular transceivers like the J4131b, as long as they are the same gigabit SX type? Any input would be helpful.