What to do with an older PC
With some regularity, I get e-mail asking about upgrade options for an older PC, like a Pentium 133 or something of that era. My advice is usually very straightforward: tank it and get yourself a new PC; even the low-end sub-$1K boxes are very fast, relatively speaking. The cost of upgrading an older PC is usually better spent toward a new system.
However, some folks just can't bring themselves to throw out a perfectly good older PC. If you fall into that category, you will be interested to read JC's review of an Evergreen AcceleraPCI. His benchmarks show a pretty decent performance increase with this little card, at least on synthetic tests.
I still say chuck it and get an eMachine.