Mac Repair Sheffield

A Selection Of Recent Jobs
1) I want to upgrade memory for my Mac Mini either to 2 GB or 4 GM Serial number of my Mac Mini is YM6139YEU36. I wanted to Know the cost of memory and service charges.
2) my macbook is not booting up the apple logo appears on theh screen and the indicator is turning as if trying to loadi got into restore after putting the No1 disk for restore in it will not proceed past the third stage i am now unable to eject the disk
3) I have an early 2008 mac pro. Originally had a geforce 8800gt in which 2 weeks or so ago failed with blue vertical lines, crashing and tuen finally refused to boot. Tested card in another machine and got the same symptoms so presumed a faulty card. Bought. Replacement gtx 285 which worked perfectly then failed in exactly the same manner 3 days after install. I then checked the power coming in On the pcie power connectors which looked fine and since then I am completely stuck for what could seemingly be causing my mac to break gfx cards.
4) Hi, I have a black MacBook which is about 20 months old. It's been used every day without problem until last week when the Return (enter) button broke. I've taken off the key, and the switch module is definitely broken.The Mac works fine via another keyboard/mouse but it would be good to get it back to normal if possible. Rough idea of price/timing/where to go (if this is possible) would be great.
5) This is a purely home based problem - compatibility issue between Time Capsule and Xbox360. I understand port forwarding is the solution, but need help.If this is something you would deal with could you give me an estimate.
6) Hi. I have had an iMac since January 2007. A short while ago it developed a this green line down the left hand side of the screen. I wasn't too worried because I could still see everything ok.
However, over the last few days, when starting up and coming out of sleep mode, the left hand half of the screen is blank apart from a series of narrow coloured lines. After a minute or so these start to shift like a haze (or a Wayne's World dream sequence) and then the screen, eventually becomes clear and is ok until it goes through the same process coming out of its next sleep mode.
I can send a picture, if you like. Is this repairable or is it the beginning of the end?
7) i have a problem with starting up the machine, have tried to boot up in safe mode which says it is starting up but then does'nt. i have also tried to 'mac-boot' the machine and the screen shows apple loading then goes to a blue blank screen and then to a black screen then the machine's fans start making a loud noise. I have previously been able to get into the system but it is now not working at all
8) I have an Imac G5 and I think the capacitors may have gone. It needs diagnosing and then repairing. I would like it up and running soon if possible. Thanks.
9) i have recently spilt cordial on my macbook 13.3 white, the computer seems fine to me although the keys on the keyboard are awful, i was enquiring how much it would cost for a replacement keyboard with fitting. cheers