We are currently in the process of migrating old unbranded 42U cabling-only (not deep) rack to new HP (10K series) one which have to contain old patch panels (9 of them) and other cabling stuff as well as 5 1U HP ProLiant DL360 servers. Very routine task but I really like it.
All patched panels were already transferred (with a bit of reorganization). Additional wire managers were installed. New power pallet units were added (very nice ones from HP for better power system). New servers are also mounted and so on, just have to finish minor stuff and I will post some pics :)
Two things pissed me off: 1 – HP now supplies screws (the ones to mount stuff in the rack) which need alien key (thanks God I had old normal screws I used), 2 – HP had changed the normal side panels (one per side) to some tricky 3-part-per-side panels. I took us some time to figure out how to set those parts up and it turned out to be not-that-comfortable to work with em.