i applied for my ilr personally at the croydon office. i rang them to book an appointment and here are the documents we (my husband as well as he needed to be present for the appointment) had:

passport (mine and his)
application form with correct payment details, of course!
id photos (2 for me, 1 for him, i think
letters from both employers
original payslips for the past 3 months
original bank statements for the past 3 months
6 original utility bills both on our names - i arrived here on spouse visa oct 07 and i think the first bill we had on both our names was for nov 07 and they were perfectly happy with that
life in the uk test certificate

im not sure if ive forgotten to write anymore requirements but i think thats it. i renewed my passport recently so i obviously had to bring the old one as it has my spouse visa stamp.

mhic and evo76 - im from kent too! where do you guys live?