Hello wckedsunny, how are you? I hope you remember me, maybe not though, I was a bit of a lurker and only around for a short while last year.
I read your other post regarding your accident, and I’m pleased your on the mend mate, I’m sure the time in bed forced you to reflect on a lot of things. Serious misshaps and tragedy’s tend to do that don’t they mate? 
Anyways, your question is an interesting one, and not as straight forward as it seems! Everyone will simply say, buy a WACOM, almost any WACOM and you’ll be sorted. Not quite unfortunately! 
I recently bought several tablets, after enduring the Wacom Volito 2 for over a year. I say this because, quite frankly, the Volito 2 is a shoddy piece of technology, especially the cheap feeling pen. In twelve months I went through two of them, and when I eventually settled on an Intuos, only then did I realise how bad the Volito 2 was. The pen of the Volito 2 was like a big fat crayon also, and just as clumsy to use, so seriously mate, the Volito 2 model is best avoided in my opinion.
Volito 2 is poo!

I briefly owned and used an Aiptek HyperPen 8000U, and even though people snobbishly say these are crap compared to Wacoms, it wasn’t half bad. It was EASILY better than the Volito 2 that’s for sure and at a fraction of the price and it has a mouse. The pen is a little bulky, as it houses a single AAA battery, but no more so than the Volito 2. I gave it o my brother after settling on the tablet I have now.
This is the exact model I owned:

I then bought an Intuos 3, and quite frankly, considering the hight price, I was not overwhelmed, in fact some aspects bugged me. The pen is a little chunky near the nib where you hold it, and the buttons either side, or rather on the side you hold the pen in, are constantly being nudged by your hand accidently and activating things! The rsponsiveness is great though, I cannot fault that.
Intuos 3 to dear for me!

I briefly tried an Intuos 2, and basically, the tablet is great! I cannot fault anything about it, and I’m currently watching several for sale on ebay.
The Intuos 2 is for you!

The tablet, I currently use, and I find equally as good as the Intuos 2, is the Intuos 1. The pen is perfectly proportioned, and the tablet is nicely styled and feels solid. I managed to get it on ebay for… and this WILL shock you…A ‘buy it now’ price of £5.00!! +£1.00 postage and packing!! In fact the actual postage ended up being £6.00 when i looked at the package when it came, so god knows what the poor bloke was doing who sold it!? I’m not complaining though! I also had to buy a serial-to-usb dongle thingy, but it works 100%. I sold my Intuos 3 after buying this. Luckily Wacom tablets can easily make the same money back if bought second hand 
This is the same model Intuos 1, only mine is a the serial version:

I tried a Graphire4 for literally 2 minutes in a PC shop, and I was not impressed at all! Felt just like the Volito 2, only it had a mouse, which almost totally filled the actual pressure sinsitve area!

I just bought a Graphire3 for a mere £20 quid on ebay just tonight. I hope it’s better than the newer model I tried. The one I bought is bigger at least.
This is the exact same model I bought:

If I were you Sunny, I’d buy an Aiptek hyperpen tablet as cheaply as you possibly can, then save for as long as possible and look out for a cheap deal on ebay for an Intuos 1 or 2.
Hope my meagre knowledge helps a little bit 