Terminal shortcut keys

I've recently immigrated from Ubuntu to Mac OSX Snow Leopard. I use the terminal (iterm2) extensively, and I am a great fan of shortcut keys.

The standard shortcut keys (which work in any GUI textbox) are:

• ⌘+← Jumps to first character in line
• ⌘+→ Jumps to last character in line
• ⌥+← Moves one word forward
• ⌥+→ Moves one word backward

How can I impose these shortcuts in iterm (or terminal)?

Are there any standard key bindings for these operations in Mac I should know and use?

The standard shell shortcuts (M- = meta = option or esc, C- = control):

• M-b and M-f correspond to ⌥← and ⌥→
• C-a and C-e correspond to ⌘← and ⌘→

⌥← and ⌥→ are bound to M-b and M-f by default on Lion's Terminal. On 10.6 you'll have to add them manually:

I haven't found any way to reassign ⌘← and ⌘→ in Terminal.