On the French version of thomann.de the Zoom H2 is €166, the Roland R-05 €199 and the Tascam DR-2d €282. I think there is free shipping on orders of €199 and over, otherwise it is a flat €10. My French sucks so don't take my word for it...
I don't have any experience with the Tascam but I do own the H2 and R-05. The H2 really is a piece of crap. OK, the internals are decent at moderate volume but any set of eternal mics will be way better. The line in is too sensitive, the mic in is too noisy and to make matters worse, both of these jacks fail easily.
The Roland R-05 is better quality, the only thing I don't like about it is the layout of the buttons. I did try the internal mics once and I thought it sounded decent enough but for any serious taping you really should invest in some good mics. Battery life is awesome, in my unscientific test I got something like 16 hours on rechargeables.
My Marantz PMD620 is still my go to recorder though, especially since it can power all of mics just fine without a battery box (Sennheiser MKE-2 with 4.7K mod, CA-11 cards/omni's, CAFS), even at the super loud metal shows I tape.