It wasnt too bad actually, got the expensive bits from Nic and got everthing replaced in one go, my belts looked fine to be honest but had both the timing and aux belts changed at the same time as it all has to come off anyway.
Have a search on here for squealing and startup and you should find a lot (well I did anyway) I had the same thing when it got warm it quietened down, I wouldnt ignore it or hide it with silicone spray as it will get expensive....
Its worth checking this thread to check your crank pulley, hopefully it isnt that. Crank Pulley also this one