Don't use that old 60 gigs HDD. If it is IDE, then newer drive are well faster. I would suggest getting 2 500 GB HDD and RAID 0 them. They are cheap now and can be bought for about 35$. You can use a third one to store files and backup.
RAID 0 use 2 (or more) HDD, merge them together and the system sees them as one drive only. RAID 0 is faster because the controlle split the chunk of data in 2 (for 2 drive config) and send each part to each drive at the same time. Theorically, a RAID should be twice as fast as a single drive, but it is a bit less than that. On mine, I would say 80% of twice the speed. Since data is split and stored on each drive, if one drive fail, you loose the everything. For your information, I've been running on RAID for about 10 years now, upgrading HDD about every 2-3 years to better suit my needs and I didn't have any failure with RAID, and the HDD that were removed are still in uses except the older 40GB I lost track since then. I use an application called Puresync to keep a backup of my important file that are on my array on a separate drive in my computer. This application if free and what it does is to create a mirrored folder of every one of my important folder on an other drive. So, if the array fails, the other drive still has the important folder intact. If the backup drive fails, the array still has it and I can simply create a mirror on an other drive if needed. I've been dealing with HDD for more than 15 years and only got 3 trhat fails on me. The last one in 2002. People call often for RAID 1 (mirroring) or RAID 5 (with parity drive) but in the case of RAID 1, a whole drive is used as a backup drive. IMHO, it is a lot of wasted space for only a few gigs of important stuff. In fact, RAID 1 is usefull only if your computer is used in mission critical environnement stuff and cannot be shut down for maintenance as a failed HDD can be replaced (depend of the controller) without stopping the computer (hot swap).
A RAID 0 array is only as fast as the fastest drive of the array or twice as big as the smallest drive of the array. That means that getting a 60 GB SSD to match your old 60GB will be a waste as the fast SSD will have to wait for the old drive anyway..
The RAID is created at the BIOS level, and then used with the OS with special drivers. I suggest you read a bit about RAID with google to know more about the array, and read you motherboard manual to know how to create an array.