Sorry! Skipped my attention that it was
you who had this problem. Thought the comment was actually posted by a new-comer!
If it is indeed so difficult to eject the SD card, a trip to the service center to rectify the problem once and for all would be a prudent decision... hopefully it will be corrected on the spot for you.
Also, your initial opinions on the K7 are spot on. Its a great camera... but since I already have the D90 and I often shoot at high ISOs and need better focusing and image stabilization, I decided to skip the K7 for now and wait for its successor... before I decide to offload the D90. K-x was my first Pentax DSLR and I bought it thinking it would make a cheapo D90... and it does!... making the K-x a great backup DSLR for those loving the ISO capability of the D90.