Yes - I ended up bringing In a Satlink 6990 Dtt modulator - which generally works quite well.
Setup is quite straight forward too, the user can define the LCN - logical channel number that it will appear as on all Tvs on your local dtt distribution, aswell as name the channel too.
So far my unit has been running for about three months.
There is a few small issues that I have highlighted to the manufacturers which they say will be addresses via a software update.
1 - The Lcd display remains continuously lit (it needs to have a sleep or timeout/hibernation)
2 - The modulation isn't quite compliant with our Nz freeview - whereby some dtt televisions continuously prompt the user to perform a retune.
3 - The user is unable to select channel 0 as LCN...
4 - Component Video input instead of Composite would have been good.
While they aren't exactly big issues - it would still be nice to see them sorted.
For the cost - Around $150 - still pretty good.