Hi Dave,
Over the years, I've collected all sorts of gear. The odd thing is that the kit I use regularly, the stuff I like using, is neither state of the art nor expensive.
Out of my vast array of billies, pots and pans, the most frequently used are a Tatonka kettle and a 1/2 ltr can for drumming up. The tea can started out in life as a stainless steel tea-caddy. The Tatonka was bought a couple of years ago, as the pot with hanging bail I'd used for decades finally sprung a leak. My cup is an orange plastic number I've carried for decades through Scotland, the Alps, Tatry, Pyrenees and Atlas mountains. It has a patina testament to its antiquity. If only it could talk!
I have, somewhere, stoves from old brass paraffin Primuses to petrol Optimus stoves, Trangia, hexi-block and various gas stoves. They all have histories, although due to practicality, the stove I use most often is a home made wood burner similar to the type you'll see here...
http://www.bushcraftuk.com/forum/showthread.php?t=57216 (thank Bushcraftbob for that, and check out the copious info in DIY and Traditional Crafts on this site) Mine was made in half an hour from an old tea caddy with a drill and a grinder, and has been fuelled with everything from wood to heather, peat and the crap of various herbivores. Almost all of my cooking is done on the camp-fire, either suspended on a crane or rack or on a rock at the side.
I don't use meths as it's expensive and can't be easily replenished. My belt and braces comes in the form of my wood burning/"Hobo" stove and a well respected petrol Optimus Svea. A gallon of petrol can still be bought for not much more than the price of a can of gas. The petrol can be easily gotten and will last me for months. A can of gas needs a camping store and lasts for maybe a week.
The saw I've used for the last 3 years is a small fixed-blade gardening saw, £3 from Lidl. I can't say how many tons of dead-standers it's dropped.
My point is that you don't need to splash the cash in obtaining kit! Look in Lidl, Aldi, surplus stores, etc. Millets sell 6' x 9' groundsheets for less than a tenner! Check out the pound shops for water bags, bottles and boxes, etc. Get yourself to car boot sales and if you keep an open mind, you might be pleasantly surprised at what you can pick up, and what others think is useless junk. I saw an old Sheffield Bowie for a couple of quid... spitting now that I didn't grab it!
One thing I will say is that you need a warm sleeping bag, and when you're in the sh!t you need a good pair of boots!
Cheers, and happy