switching to bigger sdhc card

[whbisondtr]

hi, can I just back up by copying titanium backup and then my music/pictures to my pc then transfer to the new card? also, i am using Link2sd, and its been a while since i created the second partition, but im pretty sure i did the ext2, when i open link2sd and check the storage, the second partition says "data/ext2", so that states i used the ext2? im not tech savvy so dumb question i know. i am also going from a 4gb class 4 to a 16gb class 4, and any concerns with that? one more question, sorry, how big do i actually need to make the second partition on the new card? on the 4gb i split it about even and hardly any of the second partition was used. thank in advance!!!!!!

my phone is rooted- gingerbreak, stock rom, V 2.2.2