If you want a sharp medieval european swords then here are some places:
Museum Replicas Limited (MRL): Inexpensive (and sometimes cheap) carbon steel pieces. Quality has had issues but seems to be improving of late. The blades are often made using peened hilt construction so they can loosen with use. They tend to be re-inactor friendly which means the blades tend dull and heavy. The MRL store is more costly than others, but has a superior warranty that may come in handy with their spotty quality control.
Deltin: Nicer quality than MRL in general, but similar. A little heavy, normally unsharpened, and peened.
Cold Steel: Usually good quality (but there have been exceptions) and sharp with a good edge. Still heavy and peened, but good cutters. The cold steel store is overpriced, but other retailers can be more reasonable.
Angus Trim (Atrim) Swords: These are carried by the swordforum museum store, christian fletcher, and
www.allsaintsblades.com. Sharp, good weight, quality, and balance. Stock swords are built to be working cutters not pretty wall-hangers, but they have excellent lines none-the-less. Hilts are not peened but threaded so that they are easily dismountable.
Albion: Like Atrim swords they are good quality, sharp, good weight and feel great. Dismountable threaded hilts.
Arms&Armor:
www.armor.com sharp, pretty, good weight, excellent quality. The best place out there without going custom, but also the most expensive.