McGeady is likely to be a very good signing for you guys, has a very good season last year and at the sorts of money being mentioned is a snip.
£12m for Murphy isn't silly money though, some of the figures flying around in the media for championship players (£30m+ for Cairney) have been eye-watering. 15 years ago we were paying £5-£10 million for championship players (Dyer, Jenas, Bellamy, Bramble) and the market has gone vastly upwards since then. He's 22 and certainly improved for the past 2-3 years so the hope is that he will continue to do so whilst McGeady is 31 and at, or just after, his peak. They were similar levels next year but surely wont be in a couple of years, the big question is whether next year Murphy will be anything like the player we need him to be - I think he'll be an "off the bench" player to be honest. He'll have to do insanely well to dislodge Richie and I suspect Atsu will be first choice left-wing, not sure how happy I am with that but it depends on formation and covering options...