upgrading to pt 9 from 7.4.2le

[goggs33]

hello...
im a little confused.. i;m upgrading to pt9 from 7.4.2le and i was a little lost..
do i just buy the crossgrade version... which is cheaper and do i need the need pace ilock smartkey with it??? as i all ready had one that came bundled with my 003.. its the big stupid looking green one.. or do i need the new ilock key??
and when i install pt9.. do i then update to the latest 9.0.5??
i'm installing snow leopard 10.6.3 as we speak and i will update to 10.6.8 as soon as its done..
what is confusing me is the ilock key thing?? because i dont think it ships with the crossgrade version..
oh and do i still get the 70odd plugins and instruments thats shipped with pt9 on the crossgrade version??

i tell ya this updating to pt9 is a costly business

imac8,1
2.8Ghz core2duo
4Gb ram
500Gb hhd
western d mybook studio 750Gb Ex hhd

manny thanks gordon