Could anyone please fill me in on the differences between the 2 tx's, are they that significant, or for that matter that important to a beginner. I would like to get a tx that I won't have to upgrade for awhile and that I can grow into the hobby with.

Thanks, Jim S.

depending on how moch you want to spend.

non computer Hitec laser 6

computer hitec flash5 or eclipse 7, futaba 9c, jr388

The 8U's have been discontinued. You will have to go with a 9C

If you are looking at used, the 8UAF is the older model of the 8UAFS. The S on the end means super and has 8 model memory (might only be 6, I can't remember). The 8UAF only has one model memory. The 8UAFS also has a removable module in back for the freq. The older model doesn't have it. The 9C is a way better radio, just for your information. If you are even close to the same price, you would be better off with it. I had both 8 ch modles you asked about and sold them when the 9C came out. Much better radio.