Hi:
Need some advice

I had a working installation of SMF but for some reason stopped working (internal server error) So I deleted everything (folder and files) and did a full re-install of SMF 2.0.2 with clean files.
Everything is working fine, used repair_settings.php as I'm using the same database with huge data in it.
The point is that with the old forum I used an iso-8859-1 language (spanish) but now when I'm reading messages and topics and everything on the public forum section, I see strange characters, so I installed the spanish utf8 lang file and now everything is fine.

My question is: as my data is in utf-8 and I'm using a utf-8 language in order for the right display of data, Should I convert my DB to utf-8? Because in SMF appear as iso-8859-1 (in my db manager hosting control panel is latin1_swedish_ci)
Thanks!