see......now if you would just come to my lair
........eh-hem......I mean...... place, you could check out the whole system......my tank is exactly the same same as yours.......if I've scared you away you could check out the first few pages of my 110g thread to see what I did as far as overflows/plumbing/sump goes(lots of pics there)
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa).
http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here
http://www.vimeo.com/2304609 and here
http://www.vimeo.com/16591694