macrium reflect free edition
will preserve 4k alignment (if the original partition was 4k aligned, but a win7 clean install will have done that by default) so you can clone your OS partition to your SSD properly. they have a pay version also.
acronis 2011 will honor alignment also but its not free.
other imaging programs may not honor 4k alignment so you may have to manually align afterward.
EDIT: if you clone an existing win7 install to a SSD, there are a couple tweaks you will need to do. the main one is turn off defrag for the SSD. others are personal preference, but some will extend the life of the SSD slightly. not enough to really worry about though IMO.