Recommendations for good but affordable drawing tablets?

[Garamonde]

Well unfortunately she refuses to get anything used for me -- she always insists on getting me new condition items.
Which I greatly appreciate, I'm funny about items that may not be clean or have smudges etc. (but it depends on what it is too), it just also costs more.
I am gonna check out the ones in Tellis' link and see how those look, I just have to measure my lap because I need to get the right inches. Not too small but not so big it won't fit on my lap.
Trouble is I'm not sure how big the actual screen will be if I get one small enough for my lap. I'm sort of a small girl so I can't handle anything huge.