LOL, watch out for the Migdet you visited, and the white Mopar powered Datsun 510 - I'm not sure how balanced that one'll be with that big hunk 'o' iron in the front, but I wouldn't underestimate it.
Nothing to worry about from the Nissan 240 - He'll be backwords on the track at some point.
The CRX's scare me a bit. I owned one and they corner like nobdies business - but they can only be set up for drag racing or cornering - not much middle ground with them only having an 87 inch wheelbase, but unless the drivers are awsome, you'll take 'em.
Practice practice practice!!!! get lot's of track time before October!!!!!!! And get her dialed in - for both the drags and the autoX parts!! They'll be a few compromises to make it suitable for both, but you have the better platform!