Changing 'contact us' to 'contact me' was actually a much more involved process than i thought it was going to be- about an hour longer than the one click i had envisioned. The reason for this is, in order to make my client's site look like it was just 'hers', everything that referred to the entity 'us' needed to be changed to 'me'. So i ended up changing every 'we', 'us', and 'our' to 'I', 'me', and 'my'. Additionally, I located every 'store owner' and changed it to 'me'. I found all these instances by running a dreamweaver search for each word in the entire site directory.
For anyone interested, the files I ended up changing were:
includes/functions/functions_email.php
includes/languages/CUSTOM/english.php
includes/languages/english/CUSTOM/checkout_payment.php
includes/languages/english/CUSTOM/checkout_process.php
includes/languages/english/CUSTOM/checkout_shipping.php
includes/languages/english/CUSTOM/checkout_success.php
includes/languages/english/CUSTOM/cookie_usage.php
includes/languages/english/CUSTOM/contact_us.php
includes/languages/english/CUSTOM/create_account.php
includes/languages/english/CUSTOM/create_account_success.php
includes/languages/english/CUSTOM/credit_cards.php
includes/languages/english/CUSTOM/customers_authorization.php
includes/languages/english/CUSTOM/email_extras.php
includes/languages/english/CUSTOM/gv_send.php
includes/languages/english/CUSTOM/password_forgotten.php
includes/languages/english/CUSTOM/popup_cvv_help.php
includes/languages/english/CUSTOM/SSL_check.php
includes/languages/english/CUSTOM/unsubscribe.php
includes/languages/english/html_includes/CUSTOM/define_contact_us.php
includes/languages/english/html_includes/CUSTOM/define_site_map.php
includes/languages/english/modules/payment/CUSTOM/authorizenet_aim.php
includes/languages/english/modules/payment/CUSTOM/linkpoint_api.php
includes/languages/english/modules/payment/CUSTOM/money_order.php
includes/languages/english/modules/payment/CUSTOM/paypalwpp.php
includes/languages/english/modules/shipping/CUSTOM/usps.php