mine cost around £1300 altogether, i dont have a ssd but thats my next addition, my mistakes where buying things too fast and wanting to upgrade to something better a few weeks later, i had a 500w psu now a 700w but will need to change again if i want crossfire so i wish i had got the hx 850 right away, i also changed my case three times, from cm elite 335 ~ cm storm scout ~ now antec 1200.
My advice is get the best you can now, especially things you dont think are as important. i was pi**ed that i paid £260 for my 5850 and then found they where around £180 on the mm, if id waited a week for mm access i could have had a 5870 or maybe even a 5970 for a bit more.
£1300 includes all peripherals though.