Nothing wrong with another OEM exhaust really.
Except the price I guess.
If you can find a cheap stainless system and can live the possibility that it'll make your car sound uber-chav, then there's your other option.
It's a sod though, I had my exhaust go a couple of years back, 172 OEM backbox 170 quid but, no more than 4 months later, the strain of the previous damage made itself shown and I needed a new centre-pipe. Pattern part, £65.
Unfortunately the pattern part isn't quite the same so there was a minor (really minor) blow where the 2 parts met. Nothing a load of sealant and some of that exhaust bangade couldn't hurt though.