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I was very curious to read your review, as I own a LC2430. It is well written review.
However, I don't have any problem with the AC connector as mentioned in your review. I know this can be a pain, as I have a similar issue with a Dell laptop. You may want to check if your specific AC connector has an issue.
Overall I like the LC2430 system.
I have gone through buying and installing a thinkpad as suggested by another comment. However, the time spent in getting things working is simply not worth it.