I agree with Bob - there's a lot of great product out there at under £500.
I tried a Fender Korean Tele that was -for me - a better guitar than a lot of more expensive and CS Fender.
You've got to try with your eyes closed and your ears wide open as many models as you can - try always to use the same amp - Peavey Classic or Fender Deluxe RI is my choice as most stores have them. - and hardest of all with an open mind focusing on what you are going to do with the instrument, not what it looks like.
Also I agree with Sifyben who suggests that if you dont like the trem don't buy and then go and change it - get a axe that does what you want first time round and keep expenses down.
I have a original Soapbar SE, the red singlecut with 2 soapbars and just the other day was playing with a guy who had a very expensive + £3K Gibson 56 CS LP with P90s and at the 20/30 watt volumes.
Unprompted, the other musicians mentioned that the PRS sounded as good if not better than the Gibson.
This PRS also has the perfect 59 LP thick neck down to a tee. It laso thinner and lighter than the US ones and I've had no tuning or tuner stability problems.
I see that Mick Taylor in UK Guitarist has changed the pickup on his Single Soapbar SE but for the moment I get just the P90 sound I want from it.
Hope this helps and tell us what you finally decide on.
Bruce Stringkiller