I use Directory opus for FTP. ?I think it also supports (for an extra fee) secure FTP, but don't quote me on that. ?Directory Opus is a total replacement for the usual windows explorer file stuff. ?It has multiple tabs, and you can have 2 directory panes (each with multiple tabs) as well. ?You can do all sorts of scripting (I haven't delved into that) but just for the convenience of having the tabs and such it's amazing. ?It also has a nice preview tool built into it as well. ?I got sick of having multiple directory windows open, this solved it nicely. ?The FTP was a nice bonus when the 3 series started to support it.
Just keep in mind, this is not a free tool, but I found it well worth the money.