We never really replaced Given, so another 30k on GK should be reasonable (Considering Routledge is on 20k). Especially as it'd mean that Krul and Forster would both be able to get playing time. I'm still optimistic towards getting Europe next season with a little luck, if that's the case I think we would need 2 competent keepers, you only need to look at Arsenal to see why.
I was reading their forums a while back to see what they thought of him and saw a little of him play against Rangers recently. The Celtic fans seem to think he's a good prospect, but nowhere near the finished article. Good shot-stopping, not particularly authoritative, dire kicking, I'm not sure if a seasons training here or another loan spell would help him improve more in that respect.