*UPDATED* 9-15-14
Here is some Info about installing an SSD in your oldie laptop. Fun fun !! 
So I have been trying out some solid state drives/CF to IDE converters. I will specify here which ones I found have that work and which didn't. The advantages when using these are:
Less noisey sound output. This is huge !!! With a traditional IDE drive installed, whenever I would load a new song in Impulse Tracker, I could hear the actual hard drive being accessed. It's an audible noise. With the SSD installed, there is no more loading time noise!
Also, fast load times! Such performance!
These were tested on Compaq Armada laptops, models: 7770, 7770DMT.
THE GOOD:
Super Talent 4GB IDE SSD
Just got some today. They work great. However, you MUST do all partitioning/formatting within MS-DOS. It does not like it if you hook this up to a modern (windows 7) PC and partition and format. Even if you partitiong to FAT32, once you put the SSD in the laptop MS-DOS doesnt install correctly or won't detect. You must use FDISK, and then FORMAT on your MS-DOS machine itself. Or after running FDISK and setting it up, you can run the DOS 7.1 install since it contains FORMAT built-in.
SYBA 2.5 IDE to dual compact flash drive
**Shown inside Armada 7770DMT caddy
Works awesome. However, only works awesome with Sandisk Ultra II 15mb/s compact flash cards. I only tried with 4GB ones. It should be fine with the 8GB ones. But other brands I tried like DANE-ELEC or TRANSCEND, it did not like/did not detect. So stick to Sandisk cards (older ones) with this IDE to CF adapter. Same applies to above, you MUST do all partitioning and formatting from the MS-DOS computer for it work/detect properly.
THE BAD
Swissbit 8GB SSD
Very finicky, I only got one drive to work in one of my machines, when all the other setups/combos worked in all or none. So I would stay away from those!
That's all the brands I have tried so far. Hope this helps some of you out!! The easiest ones to get a hold of are the SYBA adapters and SANDISK ULTRA II compact flash cards.
BONUS!!!
If you are one of the very few to be rocking a desktop. I have put an SSD in one of those too. I installed a 2.5 inch 32GB Sandisk SATA drive, with a SATA to IDE adaptor. Works great in DOS !!
If anyone else has tried other brands/configurations feel free to let us all know!
