If you don't like Gtk apps, there's KMyMoney as well. It's KDE based (obviously). It ships with some distros as well, but here's a couple links to download to install yourself:
KMyMoney -- http://kmymoney2.sourceforge.net/
GnuCash -- http://www.gnucash.org/
From what I've seen KMyMoney is probably better for personal finances, as GnuCash has a transactions-based system that can be confusing and is more complex than you may need. I'm not sure how mature KMyMoney is though. I've used GnuCash extensively and it seems very stable, but I believe KMyMoney is newer, and therefore possibly less stable.
Anyhow try both out and see what works for you. Great way to find software, btw, is through www.google.com/linux
(i.e search for "financial software", GnuCash is mentioned on the page of the first search result)
Oh yeah, and if you still have your finances stored, you can import it into GnuCash, as it supports both Quicken and MS Money file formats. Although, afaik, KMyMoney only supports Quicken. Theoretically, if you really wanted to use KMyMoney with MS Money format, you could always import into GnuCash and save, and then KMyMoney can import files from GnuCash native format :-)