If I had an Eos 1D … I wouldn't use RAW + JPG unless I was a photo-reporter with the need to transmit the photos immediately to my newspaper via satellite phone.
In all other cases, after spending $6000 I would spend other $1500 for a "half size" laptop (that fits in your hotel in room security box) and record RAW only (faster and less space wasted on CF).
The JPG can be easily obtained on computer by a batch conversion job.
By the way, I save all (good and bad) RAW files on DVD as I come back from a trip (now days DVDs are cheap).
Then I derive compilations with the best ones.
A cheaper solutions at home would be to open 2 windows on your PC:
1 with the browser (any you already own).
The second with Windows Explorer, having the files listed sorted by name (so it's very easy to delete both files (RAW and JPG same name) that are adjacent.
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GiorgioPM