Definitely not ipad for the blatant market manipulations for one, but also for the low level of actual hardware you get for your money. No USB, no SD card slots, no camera, no flash for internet videos, etc. etc.
Apple have consistently spent many times the amount of their competitors on a slick marketing machine whilst selling very mediocre hardware tied up in knots to their own brand of locked down software.
Hmm, anyway, just some pent up aggression there...
I would recommend looking up the Archos 70 and the Archos 101. Both are android tablets with capacitive screens and a very nice spec. They are being released as I type with starting price of 229 and 279 pounds respectively. Funnily enough i'm off to buy one today, as working in Singapore atm and they are already in the shops here. I tried out the 70 last week and it was very impressive.
Battery life is quoted as approx 10 hours surfing and 12 hours video playback.
I'd stay clear of the chinese 'apad' type android tab as sold by Toys R Us, etc. Had a play with a couple of them here and they get very frustrating very quickly. Also no real support available.
If you are more patient than me there could be a definite bonus in waiting until Q2 next year as i'm sure there will be a flood of new devices to the market by then, and prices will come down as specs go up.
Cheers, Rich.