Nothing yet, been 'thinking' about that 2m one for sale in te aroha, but my circumstances would be similar to yours... ie parther leaving if i got it...
Really want to set up a new one about the same size, kinda having a go at building a cabinet for the 4x2x2 and will see how it goes and if its worth doing the same for a new bigger tank.
Dunno, think that one for sale is about 4 or 5 years old so should be good, but id like a sumped one tho, guess the fx5 would be ample. So either have to get it drilled and have a sump made, which wouldnt be that much cheaper than a new tank if im going to build my own stand... and id have a brand new tank...
Guess all the extra bits for a new tank would add up, probably need a bigger sump and return pump... maybe more lights.
So the appeal in the second hand one is that it is the size i want, even if it isnt drilled fir a sump/overflow, cheaper and all ready to go. However i dont need a bigger tank right now, and new is always nice for a tank that size, so yeah just tossing up on what to do. A four week old child and one income tend to inhibit the fish expansion... so maybe now isnt the time.