transmission woes

[nrcooled]

OK here it goes:
1. The clutch is dying very quickly; won't hold power in 3rd, 4th, or 5th gear
2. Now I have a rattle coming from the tranny (I think) whenever I dump the throttle or even just come off the throttle
3. It's possible that a seal went bad on the tranny because now I can see trace amounts of fluid in the general area between the driveshaft and end of tranny.
4. Very notchy shifter

Those are my poblems and here are a couple of solutions to those problems that I have hypothesized:

1. Replace clutch w/ stage 2 or 3 :: &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/withstupid.gif" border="0" valign="absmiddle" alt=':withstupid:'>
2. Refill tranny fluid (is there anyway to do it w/o taking the whole tranny off)
3. Replace seal that I didn't know existed (does anyone know what it would be called so I don't look like an idiot trying to get parts)
4. Refilling fluid will get rid of notchy shifts

Am I completely off base on some or all of these. &nbsp;Any and all suggestions are welcome. &nbsp;I just want to get everything done at the same time to avoid removing the tranny two or three times

TIA
-Bakari