since we're on the subject of spelling errors....
" YOU or YOU'RE ": This is one of the common grammar errors made by most.
"Your" is a possessive pronoun, while "you're" is a contraction for "you are".
It's fairly easy to distinguish the two. If you're not sure which one to use, follow this tip. Replace the contraction "you're" with "you are" and see if your sentence makes sense. Let's take your beautiful quote as an example, Brian.
"Gavin I will always miss and love you, I admire
you're strength. I love you my son."
If you replace 'you're' with 'you are', this is what get.
"Gavin I will always miss and love you, I admire
'you are' strength. I love you my son."
Doesn't make sense does it?
You want to replace 'you're' with 'your' - *poss.pronoun*, as in
his strength.
Therefore, you'll end up with the correct grammatical phrase : "Gavin, I will always miss and love you. I admire
your strength. I love you my son."
(I added a much needed comma and period, aswell.)
edit: Oh, one more thing...when it comes to sentimental phrases, there is no need for shortcuts. It would read much better if you added another 'you' next to 'miss'. "I will always miss you and..."
ps. Sorry mayhem, for the unrelated thread post.