my english is bad, maybe i don't answer right, but, here we go.
a very useful shortcuts is:
f / to make the view to selection
F (shift+f, whem capslock is disbable, u know
) / to make ALL views to selection
whem you working with move tool, rotate, etc... hold ' x ' and use the tool to align on the grid. it's works in vexterx mode, object mode, edge modes, all modes.
you have the keys, x (align to grid), c (i don't know what's this realy do, i'm a newb too :]) and v, to align in another objects/vertex/faces/edges.
i hope that i help you.
if the questions is that hehehehe