i was looking on ebay a few days ago and saw an ls1 4l60e combo with wiring harness' and ecu for $2k. Seemed like a reasonable deal to me. <img src="/forums/images/graemlins/wink.gif" alt="" />

Caddy's will make it to higher miles. Its a dangerous blanket statement to look at vehicles that are in for repair and then conclude that they are all subject to the same failure. Related to isuzu using the same logic, you could look at a few oil burning, ceased up 3.5's and conclude that Isuzu engines die early. Don't use them.
not the case.
<img src="/forums/images/graemlins/cheers.gif" alt="" />

Do a search on ebay for cadillacs and sort by highest mileage first.