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by Super Jamie on Thursday April 7th 2011, 20:33
Have a look into autofs. It's an automounter and dismounter for any FUSE mountpoint (sshfs, smb, nfs, etc). You setup the mount and it just transparently times out when not in use. This way you can use any file manager or editor (nautilus, filezilla, gedit, vi, whatever) to access your remote files transparently.
It's not a direct client app but it lets you use a Linux-native client app to manage your files. Maybe it will suit your needs?