Josty,
I've got a Nisis A4 tablet I bought just over two years ago. It was expensive back then (?90) but has been quite useful. However, be prepared. The A4 tablets are BIG! You've gotta think, A4 size then an extra couple of inches for the borders of the tablet. The tablet itself also is not light, so is a little annoying when I try to draw with tablet on my lap - for this I wish I had a smaller one. But with tablet on table it's perfect.
Mine has a liftable top cover so I can place A4 paper underneath and trace paper stuff which is useful.
The battery in the pen isn't so bad, you get used to the extra weight real quick and if the one you get is anything like mine, the pen will be well weighted so that the battery is nor really noticed and well supported between finger and thumb.
Mine came with a mouse. Waste of time I know, as I've got a wireless mouse already that's much better. So I've just never used my mouse! Don't think it adds much to the price so don't worry about it.
Mine apparently has 512 levels of sensitivity! :shock: I'll be honest, I've never noticed that many levels, but it certainly does draw darker/thicker lines if I press harder on the pen. I'm just constantly worried I'm gonna break it! :?
Unfortunately, recently the tablet and pen have not been working too well - the point 'shakes' a lot when I'm using the pen (not me, honest)... haven't looked at it much to try to sort it out yet.
Lastly, rather ironically even though it's a PC-only product it needed special drivers on my PC, yet when I plugged it into my OS9 Mac (which doesn't even have built-in USB, I'm using a PCMCIA USB card) it worked straight off without drivers! Go figure.
Be prepared to have to install a bunch of drivers and don't bother about the bundled software, it's all useless...
HTH,
-Max
[Edit] Oh yes, and while the Wacoms are very nice (have used a few of varying ages in my time! First one I used was around 8 years ago and they were nice back then!) you certainly do have to pay a little more for them... [/Edit]