I slapped together a Groovy rpm today. It's oriented towards Red Hat (places environment script in /etc/profile.d/) but should work anywhere. This is nice to see:
[root@kasparov ~]# apt-get install groovy
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will be installed:
groovy
0 packages upgraded, 1 newly installed, 0 removed and 18 not upgraded.
Need to get 4223kB of archives.
After unpacking 4787kB of additional disk space will be used.
Get:1 http://127.0.0.1 redhat/ES3/i386/java groovy 0:1.0b4-bmc [4223kB]
Fetched 4223kB in 0s (9425kB/s)
Executing RPM (-Uvh)...
Preparing... ########################################### [100%]
1:groovy ########################################### [100%]
[root@kasparov ~]#
I'm personally a tarball kinda guy, but some people like these rpm thingies ;-)