Hi,
Being new to the forum, please forgive me if I speak out of place, but I know where the original poster "is comming form"...
I read somewhere this really insightful quote: Film (cinematography) is the only artistic field where the artist can't afford the medium (media?).
So, with a not too impressive fistful of cash, your options are really limeted.
But there are things you can do, depending on what you want to accomplish. If you are:
a) wanting to "get into the business" - as in "getting set time" - putting together a small but well thought out light/grip package and learning how to use it will get you days on smaller independent productions as grip/gaffer if you keep your prices low and adopt a friendly, positive and service minded attitude. A decent light/grip package can be put together for 3-4.000 GBP. Buy PROFESSIONAL (not still photo grade) second hand stuff in good condition, and make sure you get some kinos in your package (everybody and his mother has a few tungsten lights laying around, but not kinos).
B) trying to persue a career as a cinematographer - buy a used 35mm still camera, fully manual no AF, no Auto exposure (you should'nt have to spend more than 100 GBP) - and buy a brand spanking new top of the line light meter (seconic 608 maybe - I've been using the 508 for many years, but I'd love to have the spot readout in the wiewfinder). Get together a minimal cheap but working light/grip kit (no flashes!!!! - go tungsten) And then - start shooting stills!!!!! And, even more important - buy a 35mm neg/slide scanner and get a copy of Photoshop and really learn what happens to the image in the digital realm. As a director, I'd be more inclined to pick a DP that can demonstrate visual litteracy and a good eye, than someone who owns a mattebox. Your total here (assuming you have a computer) should be around 2.500 GBP (about the price for a nice new matte box)
c) just eager to burn some cash - well, there are a few tools you could spend money on... Get a top of the line Light meter (se option "b"), maybe get a viewfinder, if you don't have it already, get the AC manual (I think the 9th ed is the current one), get a subscription to AC Magazine and read it cover to cover - and if you still have money to spend, find and buy every back-issue of AC magazine for the last 10 years, and read those cover to cover. This should be somewhere around 1.000 GBP
But, most important - build your network
Once again, being new to the forum, please forgive me if I have spoken out of place.
Kind regards
Jack