Jordan,
Okay, forget Rachels and Taft, pretty dead since they moved the intermodal to down near Winter Park.
You will see the two Amtraks each day though and they pass between 11:00 and 13:00, most freight is nights or early morning. The new SunRail platforms do get reasonable viewing of the north end of the manifest yard and you may get lucky and see the rock train, there's also a coal train two or three times a week but I never managed to catch that.
I've also just found out that CSX have been making cut backs since last year and now Winston Yard is also closed with all the traffic concentrated on Mulberry. Mulberry has two yards...so I've just found out but the second isn't as accessible as the one I visited. You will almost always find locos at Mulberry first thing in the morning, I think I maybe had a 10% fail rate at Mulberry as opposed to 90% at Taft since the intermodal closed. Now that it hosts all the Winston traffic as well, it should be a lot busier, so it should be a better place to go. There's a road runs right past one of the engine tracks and you can get real close.
Another definite spot for trains is Plant City, it's a nice town so the wife can wander and shop if she likes, but no malls I'm afraid. Plant city is a junction so trains are usually slow and it's in the middle of town so no long vista shots and very short warning times for approaching trains.
Don't trust barriers as a sign a train is coming, if it's running at track speed it'll be down about...oh roughly 10-20 seconds before the train hits the crossing, there's none of this down for two or three minutes before the train arrives messing around we have over here.
If you want fast trains then Dade City or Bushnell, though the curve at Bushnell has a mild restriction on it.
Another place is Wildwood, always something going on there, mostly shunting in the morning but some pick ups arrive mid morning and the train engines will do the switching. Some trains will stop for a crew change, usually the coal ones so plenty of time to get nice close ups, others just blatt through at line speed.
As far as trains go, Orlando (A line) is a bit dead so you need to get about a bit more, even then you can get some real dead spots on the S line (Plant City - Vitis - Dade City - Wildwood) but you'll get the most hits early to mid morning and later in the afternoon.
I'm lucky, wifey and kids can look after themselves in the parks or malls and we usually go with the in laws (separate houses) so they ferry them around but if the family want a pool day or day at the villa then that'll be your best day to get some mileage in.
If not and you've only got a few hours here and there then try Taft, there might be some local power tied down there, there's usually some across the road behind the gas station, you can park there and walk up to the fence but it's not the best place to view trains really.
The other option is get up real early, whip down to Mulberry, grab your shots and head back to the villa / hotel, you'll be back by ten easy, then a day with the family.
I can mark on the maps the best places to see and photo trains if you want, it'll save you hours driving up and down dead ends. Give me a rough area where you're staying and I can mark the best roads in and out to save time, if it's around where we were then I know most of the ways in and out.
It all depends on how much free time you have, if your alone or with family, or what type of train you want to see.
I may be going next year and am going to head up to the Folkston gap, about sixty trains a day through there but it's a hell of a drive so will motel for a few days and explore the area.
All of the public stuff I've put in my Flickr site in this album
CSX It's no where near all or even a small dent in the photos I have but it'll give you and idea of the general areas I'm on about. Which reminds me, I do need to sort some more photos and process them in due course.
MD