First before I waste your time I should point out this is a bit off topic so be prepared for that.
I run my site using CMS MS, and I also run a blog external to the CMS. Now I am about to do two upgrades, one to php 5 and one to latest version of CMS MS. My blog engine is no longer supported, but it works very well for what I do. So I want to ask you guys your opinion on what I should do.
I run my blog as a diary, this means no categories, no comments or in fact anything except a place where I "dump" what happened during the day. The blog engine is no longer supported by anyone so I would prefer to "fix that". Along with my upgrade I will also restructure my site quite a bit, so I could either spend my time re-skinning the current engine, OR I could write my own plugin for CMS MS to do what I want. Why a plugin you ask, just use one of the existing ones?!
I want a plugin because my needs are so simple, and I do not want to log in to the admin panel to post a new entry, plus I want to keep track of how many entries I've got. I will need to "port" all the old ones over (1302 as of today). I am a programmer by trade (java though, not php). So given that, what do you guys think, is it reasonable for me to write a plugin to do what I want, or am I better to just continue to use my old one? The "features" I want is:
1. Just basic log in (using "CustomContent") for posting.
2. "Archive" display based on either month or week (and year).
3. During posting enter translated to br tag
4. During posting a pasting of a web address gets translated to a link.
5. A way to edit posting time.
6. A way to edit old posts.
7. Show current "post count" when I post a new entry.
All of these things is pretty basic I think, but still doing it in a new language is always interesting. So should I try to do it? (given that if you say "yes to plugin" I will undoubtedly post a number of questions here

thanks for your thoughts
Daniel