How to select ATJTAGICE or ATICE50?

Hi

We are developing a realtime kernel for the AtMega128.
We are currently in the process of choosing if we should buy the ATJTAGICE
for 300 USD or the ATICE50 for 3500 USD?

1. The problem I see is that the ATJTAGICE inserts break code into the
flash, in order to break.
This implies that the flash has to reprogrammed whenever the break point is
changed. Plus the actual code is infected with JTAGICE break code.

2. The hardware is still running, when an break point is reached. Is it then
possible to debug the source code, if the hardware continious running?

We are also going to make several timing measurements on the software, can
ATJTAGICE do the job?

The problem with the ATICE50 is that it is much more expensive that the
ATJTAGICE, So is it really worth givin 10 times more for the ATICE50 than
ATJTAGICE ?

Thanks,
Jesper, Denmark