Ok don't rub it in, I have a limited budget and buy what i can afford, We pensioners do not have unlimited funds.
And remember it’s not what you have got, it is what you do with it that counts.

One word for that Mike "Horliks"

I have been trying out my new Sigma Ring flash EM-140DG P-ttl Fitted to my K20 and then my K200 cameras and found it under exposing very badly.
I phoned SRS and talked to Nicky about it, she gave me the number for Sigma.
Guess what, the first batch that came out will only work properly on the K10’s not the later K200 or K20?
So if you have one of these working on a K10 and maybe want to use it on a K20 later contact Sigma for a re-chip, this is free.
I am told all the flashes after the price rise are now ok.
Ps. why do I always get the Duff one?

Intro 20-20 is the name you are looking for.
Tamron are there with a stand on their own as well.

One for Microlight,
If you want a longer lens for your K100 that will work on AF try a Sigma 400mm f5.6 prime lens, the APO version is very rare, but does come up for sale but commands a high price
I have got one of the 400mm Auto Focus ones.
I am also thinking of selling it, I maybe open to Good offers not silly ones.
ps in my gallery the helecopter shot done with this lens.

Loyalty from other manufacturers, back ward and forward compatible with lenses etc?
I believe Pentax is the only one major producer has more forward/ backward compatibility
Than all the others put together.
Do some research and you will come to that conclusion.
Yes the K200 D works with SDM/HSM & any other lenses, also a thing to remember is until quite recently Sigma did not produce an HSM lens for Pentax fit, well after the K100d was first made.
Nikon D40/X will only work on auto with internal motor driven lenses as the D60.
Canon EOS fit lenses were a nightmare, you had to send Sigma and others to be re chipped to make them work .
So when it comes to Pentax they are the best for me, and I am not just saying that because I have and use Pentax.
I did change from Nikon.

A set for which printer?
My 285 Under £30 and the R1400 A3 printed under £40 those 2 prices can be got at any time,I have had a set for the 285 for £17 & one for the R1400 £22, any of the -85 series will give you top colour prints of competition quality.
Unless you want to do loads of mono prints forget the printers with multiple blacks.

If you want the best results stick to the Epson carts,
with the print head Nozzles / jets being so minute any dust etc will block, you can buy cheap ciss systems on ebay, but I would not recommend it.
You can buy cheap genuine Epson carts on Ebay.

The latest share prices and comment for Jessops.
http://www.lse.co.uk/SharePrice.asp?shareprice=JSP

I learnt that lesson with the Epson R800, With so called top quality “compatibles” I binned it in the end
So now I only use genuine cartridges in my 3 Epson’s no more head cleaning and top quality prints.