i WAS a huge nokia fan and was extremely excited about the nokia E series....
...the dissapointed MASSIVELY
The blackberry Curve is an infinately better device IMHO. on paper the techspecs look worse, but the device does everything well and works without fail day after day.
the one thing it's lacking is 3G, so if youre a very heavy mobile browser person then it might not be that quick in non-EDGE coverage areas.
i personally use a bold (9000) and i set mine to use 2G only anyway
do you give a shit about mobile email access tho? if so you can always consider a normal mobile... both those phones above are really targeted at business users