Yeah I'm undecided on Ramsey as I'll only get £6.6m for him too. However, because he has such a ludicrously high ownership (the highest I've ever seen for any player in any season) if he has a long-ish term injury he WILL drop like a stone simply because there are so many people who can potentially sell him, especially as the January wildcard is looming (also bear in mind most people bought him at a higher price so they will get more back for him than us). Within 3-4 gameweeks he could quite likely be priced back below £7m again. On the flip side, the FA cup means only two gameweeks between now and Arsenal's EPL match on 13th of January i.e. it could be that he'll only miss two gameweeks depending on the severity of the injury, PLUS the fact that the next two gameweeks are very short (less than a week in total) which minimises the amount he can drop (max £0.1m per day so the absolute worst case scenario is he can only drop £0.2m before the next GW on Saturday).
You wouldn't be able to transfer him for Podolski anyway as he's a forward.
Bleh, thinking about it this is a tough call. He's certain to miss at least the next two GWs BUT is that worth sacrificing £1m in value by selling him now? Currently erring towards ditching him as after price drops that will hopefully shrink to around £0.5m max, and the opportunity cost of the transfer isn't so concerning given the January wildcard (i.e. bring him back in later in January without needing to take any hits or sacrifice other deals).